SCIENTIFIC ABSTRACT NEYMAN, M. S. - NEYMAN, R. E.
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CIA-RDP86-00513R001136820003-7
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S
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100
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Publication Date:
December 31, 1967
Content Type:
SCIENTIFIC ABSTRACT
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HUMAN, 14.1~
Folecular m--nory, qstems and di.:-ectcd ratations. Fadict--khnika. 20
no.6tl-8 Je 1135.' (~ff RA 18:7)
1. DeystvitelInyy nlilen Nauchnc-tekhnicheskogo obahchestva radio-
t6khniki i eloktresvfazi iment ?orova.
Method of induced e.:,,.-'. and c,,n,rrl of anternas.
Radi-otekhr.ika 20 no. 12:22-26 D 165 (mTPI ~-q.-l)
1. Deystvitellnyy chler. llaucir-o-tekhicheskogo obshchestva
radiotekhniki i elektrosvyazi imeni Popova.
ACC N1- Ai,7009575 SOURCE CODE: UR/0142/66/009/006/0797/0797
AUTHOR:- Kaymans M. -0. (Honored Scientist and Technical Scientist of RSF.;R;
Doctor oryo-C'Mt-ca-l"Sciences; Professor)
ORG: T-one
TITLE: Awarding of the A. S. Popov Prize for 1965
SOURCZ': IVUZ. Radlotekhnika, v. 9, no. 6, 1966, 797
TOPIC TAGS: antenna engineering, delay mechanism
SUB CODE: 09
ABSTIMM The Povov prize Is awarded once each three years for outstanding
work In the area of radio physics and electronics performed In the U:;.;R or
abroad. In 1965, the prize was awarded to a group of teachers and sciencific
workers In the chair of transmitting apparatus of the fbscow Aviation Institute
In.oni Ordzontktdze and the Scientific Research Institute of the Ministry of the
Mdio Industry of tho USSR. The prize was given for works on now method,-. of
dectrin.al scanning in antenna systems. The authors solved the problem of rapid
eleccrical scanning using two methods: frequency and discrete commutation
methoda. The frequency method has been under Investigation by these authors
since 1954. Such elements as dispersion delay devices have been studied in par-
ticularly great detail. The discrete commutation method of scanning was
suggested in 1960. Many other problems associated with this typo of antenna
have been studied. 7hose problems Include the theory of non-reflecting gaps,
the theory of multichannel antennas, the theory of distortion of antenna
radiation patterns during scanning due to systematic and random factors and
general problems In the design of electrically controLled phase shifters and
dolay/ptems. The primary results of the investigations were published under
card
ACC NR: AP6036Z68 SOURCE CODE: UR/0108/661021/011/0002/0009
AUTHOR: Neyman, M. S. (Active member)
ORG: Scientific and Technical Society of Radio Engineering and Electro-
communication im. A. S. Popov (Nauchno-takhnichaskoye obahchestvo
radiotekhniki i elaktrosvyazi)
TITLE: Negentropy principle in information -processing systems (for purposes
of discussion)
SOURCE: Radiotekhnika, v. 21, no. 11, 1966, 2-9
TOPIC TAGS: negentrop,
,r, information processing
ABSTRACT: Regarded ao a generalized second principle of thermodynamics. the
negentropy information principle is: the sutn of information and negentropy in a
closed system can only decrease6 Binary-information processing systems impose
NR: AP6036268
certain limitations an the relation between their operating speed and operating-
.energy level of their elements. The energy coefficient of operating speed is:
M a Fe /P. where F. - clock frequency and P - element power. Three
characteristic ranges of M are distinguished: W A lower range, M a 0 - 1016
cps /w; (2) A hijher range, M a 1016 1 2. 4 x 100cps/w at 300K. (3) A superhigh
range, M > 10 * cps 1w at 300K. In the first range, no steps -are required against
intrinsic noise of the elements. In the second range, special anUnoise ...I:
measures (similar to those used in long-distance communications) are required.
.Operation in the third range is possible only at cryogenic temperatures. The
above M ranges are valid at not very high frequencies; with frequencies that
correspond to quantum energies exceeding kT, the maximum frequencies must be
'lowered. Orig. art. has: 2 figures and 11 formulae.
~SUB CODE: 09 / SUBM DATE: ZIDec6S / ORIG REF: OOZ OTH REF. 001
card at a-
C-te7ory : fh-:,ics
I,ns Jrur ; kif 7.hur -- FI-Tir,
luthor : Nuy7rnA_,%', 'I , -~ir..vry v, r
Title nvustip-ption cf :Iff-i.~, in :ir-try ',!!~,ys ns r Nr-w
~Df ihysic a 1-Ch~.;Acr I ~'.n, ly~ '-s .
Orig Fub Zh. rccrgrn. I&L ti, I P",
Abstr-ct -he ch-n~,~, in the cGefficir~rt ~f ti-'e f~norgy
.-,)f nctivrticr E, vnd th; r--~fficlcnt of the cxr(ner."irl,
rs functions of "Y.,J ~,) rc--itirr of rlloys were ~eterm r.~;d
Jn Fc-Ni rnd Fc-,'o ~Yfltc,, r. Ir. ...... I,, systor-, which
roprutiontg in th,,
cr,ntinlicut; v rl-i:: -,i' 7
~ lncr,;rs-.,! cor.~ir F ~:A
tinuoualy is fui-,ctJ(r.,3 cf th, :n the
- I or,,j-und
systu!", ohich cr:#,.-irrl
ii, the tc~mj-cr~turo rrn~.~c i(() :2cr' undur
V dirinishco -~hvryly rnd Z rnd 'cp, j incrrase-shrrply t thu
Ih', Cjj(~ C r T
r~'int ccrrespuriirz tr, hu
r.,~~hors believe tl~:A thi: singri,~lnr T~cint tl;uy ~curved or.
'
tne diffu3ion chrr2ctcristics Vs. alloy c(,r.pcsiti~n curvci,
Cerd 1/2
Cstupory s USSR/Solid Strtc Thyrics - Eiffuricn. ~'intcrinv 7-<
A.bs Jour : Rof Zhur - Fizi':r,, :;c 5, 15r:7, Nc. ~,67e
I .(r
correspGrAir.~, '-,c chvw.i~;rl (n.~Ainr-1,1cn, - r~ko~ it.
t( oT.,T)Icy the !Auly (A' liffw~~icr. in t~inrry a:-, r
nuw -utEud rf 1hysicrl-choinicri rn?-Lysiq.
C-rd - 2/2
2)BMi, M. V. and SADILENKO, K. M.
"Thermonuclear Weapons," Moskva, 1958
Dr. Chem. 5cl.
."! I/
NEY' MA 11 , 1~ . " .
"The Esophagus in the Electrocardiograph of Normal and Infarched
Myocarditis Cases," Terap. Arlc~iiv., 21, i1o. 2, 1~449.
119M H. z
Diagnosis of certain types of arrhythmia, by means of the esoph-
ageal lead. Ter.arkh. 22 no.6:34-40 Nov-Doe 50. (01,141, 20:5)
1. Of the Rospital Therapeutic Clinic (Director--Prof.K.Z. Kan-
del'shtam). Leningrad Pediatric Hedical Institute.
il~;-"...'~.. . I
1 - .
',;r--:~xt --Disn:-.Ses
1~cqorlu- on th,~ .!Drk of the curdljlo~,y ~,uction of thr irLuv-',t of th--- A-li-
- U. 1. -
Union Therapeutic Society for 1950. Tt-,ruj- ariji., -3, ,io. 6, lc)5i.
9. Month]. List of Russian Accessions, Library of Congress, ;-BArch I)" rgzPf, Uncl.
Mff KAS H. Z.
Activity of the CardiologLeal Section of the S.P.Ratkin LaninKrad
Branch of the All-Union Scientific Society of Therapeutist@.
Terape arkh. 26 no.6:81-86 H-D 154. (14LRA 8:2)
(CARDIOVASCULAR SYSTEM--DISEASSS)
mffma. K.Z.
,~ I r?'N 1-
Artivities (if the cardiological section of the Botkin Leningrad
brahcn of the All-Union Scientific Society duriqg 1954. Terap.
Arkh.27 no.3:86-89 155. (MLRA 8:9)
(EEKAR!P--SURGKff )
,MTMAIT.
-- - ----
Itetas from foreign biological publications. Agrobiologiia no.1:
157-158 J&-1P '60. (KIM 13: 5 )
(Biolog7)
Raw.. N.Y.
Items from foreiga biological publications. Agrobiologita
no. 3:476-478 NY-Je 160. (KIRA 13:12)
(BIOLOGY)
NZYMI, II.F.
Itely.,3 from foreign biological publications. Agrobiologiia no.4.
6)6--638 Jl-Ag 160. (HIP- 113:8)
(Bibliography-Biology)
-.Nmw. -,- 11-F.-
Items from foreign biological publ icat ions. Agroblologiia no.5:797-
798 S-0 160* (MMA 13-10)
(Rusts (Yungi)) (BotavV-Pbyaiology)
Items from foreign biological publications. AgroWologiia
no, 13156-158 Ja~F 161. (IMUM 14.2)
(Biology)
ITEYMIP N.F.
From thia ~agea of foreIgn biological and agric-illtuTal pub-licatirj:~a.
Agrobiologia 5:796-797 9-0 164. (MIRA 17:11)
NERIAN t N. F.
Items from foreign biological publications. Agrobiclogiia
no.2:316-~17 Mr-Ap 161. 0`11FA 14:32 )
(Biology)
ITSYMAN, N. Z.
Item for forEtign biological Fuhlications. Agrobiologiia no.31:47rl-l-
476 147-Ja 161. (Botany-Physiology) (MIRA 14: 5)
-MIAMI, V.V~
Items from foreign biologl~,U publications. Agrobiologiia
no.4~636-638 JI-Ag 161. 14:7)
(Biology-) (Field crops)
DEMS , D.R,, (Da-ries, D.R.); ITEIMN, N.F. (t~zemslator]
Induced mitation in crop plants. Agrobiologiia no.5:779-792
S-0 161. (MMA 14: 10)
(Botany~--Variation)
IFLUM) F.F.
----- -
Items from foreign biological publicatims. Agrolbiolcgiia
no.6:930-932 R-D 161. (MlPj', 15:2)
(BioloMr)
NEYMIK4, N.F. ClIeuman, N.F.
Items fr,)m foreign blolorical pub'icat~sns.
- - .- -.a. _Dc-
"la
157-1,58 Ja-F '62. (MIRA 15:3)
(BIOIOU)
NEYIWP N*Ft.
From the pages of foreign bioloAcal publications. Agrobiologiia
no.2016-318 Ift-Ap 162. (Biological research) (~aRA 15 z4)
NEYMNI N.F.; MROSHNICHEIVKO, G.N.
From the pages of foreign biolog,.Ical and agricultural prublications.
Agrobiologiia no.4:636-638 Jl-A 162. (MIRA 15:9)
(GENETICS' (AGRICULTURE)
NEYMAN, N.F., SOMINA-FINKEW, 1-1.
From 'rho Pliges Of fc,.70.14n biclagic-il and agricultural-,.
AgroW.olog-.Lia nc.2.317-319 1-',--Ap ' ~, 3 . (KIRA 1617)
(Bibliogr~Lptiy--ttt,YL,i(,,u"tiirqI rt,,3earch)
RETRAN, N.F.-, SORKINA.-FINKEU1, L.I.
From the pages of foroign biological and agricultural PuSucations.
Agroblologlia no-3:476 Yq-J9 16:). (IUPA 16: 7)
(No subjfict heading)
FLEMING., G.A.; DELANEY, Dzh. [Delaney, J.]; NEYMAN, N.F. [translator]
Coger and nitrogen in the nutrition of wheat on cutaway
peat. Agrobiologiia no.6:942 N-D 163. (MIRA 17:2)
NEYMADI, N.F..; SOREINA-FINKEO, L.I.
From the pages of foreign biological and agricultural publi-
v
cations. AgrobiolC-17lia no.i,:95C-952 N-D 163-
(MIR-A. 17t-2)
TIFYRUI, N.F -.; ')-ORKINA-F'INY,!-'f,', T-1.
From the page3 oil foreign blolcrical sinll ag-~-su-'
tgrobiologiia nu. 3t47c,..477 164. -',",7'
MRFINA-FTNKEL', L.I.
From the pagej of foreign bio I cFical' and *,-::-f-. I ~ -' . -
Agrobiologiia no.4:6117 JI-Ag (,M. .;,~A 17 -. I-),
-KEY-MAN, M.F.
Book review . Agrobiologiia no.2:316-318 Mr-Ap 165.
(MIRA 19:11)
GRACHW. P.A.; MEDAN, M.
Ifficient organization of a centralized manufacture ard aupply
of enterprises vith metal-cutting tools. Mashin2troitell no.8:38
A,g 6 o. (MIRA 13:9)
(Hetitl-catting tools)
o-ACC NR: AM6o00295 Monograph UR/
Neyman, Mikhail Sanoylovich
Course in radio transmitting devices (Kurs radioperedayushchikh
ustroystv) 2d ad., rev. and enl. Moscow, Izd-vo "Sovetskoye radio,"
1965, 593 p. illus., biblio. Textbook for radio engineering
institutes and faculties. Errata alip inserted. 4T,000 copies
printed.
TOPIC 'LAGS: radio transmitter, electronic oscillator. hf oscillator,
am transmitter, ground transnitting equipment, uhf tranamJtter,
Im transmitter, radio circuit,IcLGer opi-ics
PURPOSE AND COVERAGE: This basic textbook on radio transmitting
equipment,ia intended for students in radio engineering achoola of
higher education. This second, expanded edition, contains a series
of impro v*aments *of- and ref lects developmants in this fif-ld over thes.~
last six years. Two chaptera describing transistorized transmitter
and lasers have been added.
TABLE OF CONTENTS:
From the foreword to the first edition 3
Foreword to the second edition' -- 3
?art 1. HF Radio Transmitters -- 5
- Ch. 1. - 1n.troduct-ion_-- -7
Card 1/3 11DO 621.396.61(075)
ACC NR& AM6000295
Ch. -Al. Electronic Processes in HF Tube Oscillators -- 24
Ch. Ill. Electromagnetic Circuits in Oscillators With Independent i
Excitation -- 65
Ch. IV. Self-Excited Oscillators -- 120
Ch. V. AM Transmitters -_ 186
Ch. VI. Additional Problems of H? Transmitter Design -- 210
Ch. VII. Utilization of Semiconductor Devices in Radio Transmitting
Equipment -- 236
Part II. UHF Radio Tranomitters -- 261
Iatroduction -- 263
Ch. 1. UHF Oscillatory Systemv -- 266
Ch. II. Meter and Decimeter Wave Oscillators Using Triodes and
Tetrodes -- 301
Ch. III. Frequency Modulated and Pulse Modulated Radio Trans-
mitters -- 354
Ch. IV. Pulse Modulated Radio Transmitter Circuits -- 381
Ch. V. Problems of Designing Pulse Modulated Circuits __ 410
Ch. Vi. Triode, Tetrode, and Drift Klystroa Oscillators.With a Long
Electron Drift Time -_ 451
Ch. VII. Multisegment Self-Excited Magnetron Oscillators -- 497
Ch. VIII. Operating Conditions of Self-Excited Magnetron OacillatoraL
in Radio Transmitting Equipment -- 530
Curd 2/3
ACC NRj AY.6000295
Ch. IX. Travelling.-Wave Tubes ---- 550
Ch. X. Lascra -_ 566
Conclusion 5T8
Appendix 1 582
Appendix 2 583
Appendix 3 585
Additional recommended reading
SUB CODE: 091 SUBM DATE: 26Junl')5/ ORIG HEF: 052/ OTH REF; 006
Crd 3 / 3
rd-T WATF (G)/T/ffdP(t)/E6 (a) - Dilc) JD1W3
'ACCESSION - Ngt~ AP5014132
62049S.141
Kuwh 1;
Tsinviing Adi I
-,...;TITLE: Anodic.dissolution of nirkel,in H2$04 solutions
3, 1965, 277-27V, and insert facing p. V5
SOURCEt ZashchLumtellovP v
Topic iks. anodic oxidaticn, patentiomet-w, electrode potential, nickel plati
V'ABSTRACT: In this work, anodic potentiostittic measurements and meta
llogravw
usild to study the dissolution of 99. 2% E!Lrc! tit in a I N H2S04 solution and In an
electrOlYtic Polishing solution, 21-5 N H2947 at & temperature of 22 t 10. The
1:potentiostatic curves are ob~talned by using an electronic potentiostat. The speci-
'merls' used had both planar and cyLindrical shapes; at potentials above 1.3 v the
:stxvngth of the current depended upon the separation and shape of the electrodes.
Q p0 Los I a rVes
!Data an the dissolution of Ki are presented in the form f tent tat c u
Ug,i-afcm? as a function of 0-valtage) in both of the H'2S04 801utiOus- Some Of
:,Athe curves Illustrate the dependence of currxent density mid speed of dissolution am
I potential. -Aurface aLcrophotographe of Ki arti shoun fdr: viwious regions of the po-
ft6r 5-10 min of diasolution. Hos(eiror,'for the regLons of st
tetvtlal of ab
MA
1, 4205
4i _AHOV032
Accisord
E10
(patsivisation) the itmersion time was longest. In the 1 N' HZS04 for the transftioni
towards the rating region, the surface i(as found to,be etched, and pitting wati
passi
observed. In the secondary region of passivitys spots of' interer
_yatall1na corrosi
were.observedj, while beyond this region they diminished$ ratererystelline Carro-
ision of the HL accurred in the 2l..5 N HZS04 In the Interval of potential frow 013
to 1.3 volts. This Is rationalized in terms~of eatablished theories of oxygen ad-
re
isorption on the NI surface which sulted in4lactrochemLcal heterogeneity of the
grains relative to the boundaries and enhancad intercrystmIline corrosion. The ab-~i
s
a of intercrystalline dissolution in the 21.5 R H2S04 ill the potential range
enc
from 1.7 to 2.2 volts is explained by the apparent effect of- the limiting currtnt
In causing the presence of soma type of diffusion layer to form on the surface of
the NL. An analogous p(ittern of behavior wai observed in the electrolyte
H3POit, + HZS04 +CrGS# where a similar increasit,in "ad of dissolution was observed.'
with the beginning of oxygen avolutione The authors conclude that only In the
presence of owe diffusion layer. can the , rate it of dissolution of grains and bound-
aries.,be equalliado.otherwide the adsorption,~,If:oxygen will result'in intercrystal-
line at~acki ~Orlg, iwt. has: 5 figures*~...
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by dw uWW 4d Dummuiskil (C. A. Z1, WO). The
tatt. otadAmbcd KjObtama-ty p"Partinaal tatke coma.
ad MH (a the %aW Mace tit equd. I.. - P.. tiftege 11.
in 110 vapor Perize al gf~oa ;ithH1&,Yer d idwgtxJ IfM
to a ado. CA a g no can a 4, 0 ad P. Is the vxpcw
pmrAm of this via. after ad*ocptim of HoU in the cotton
takes place. tim adAmplian poccatial cut 1w calcd. by
masas of Pdanyl's equation: o - R F It where
Pj, is dw vgpix, presure of the mix. bitme sdiacpflon
t&kft Place. ThA Wilt(MVe Of 2 IST906 Of 13(91164 140.
oce, I Y kdd (YAW LIKIM 1116d OW M10M 61124Y Wd 10atf
toyer. held as t1te hydmphUL- mubstance. its suggetted by
previous invamd(jacace. im corz&mied. Tie autt. ad Ef.0
bm Lim outee fayttr Is kvemdr piepactioual to temp. (n the
(Aterwal studied. W&Ak Cie mat. IKId (a tte WAer ter" h
a. Ugge 44 sabdo as Waftir-
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Man. - 00 09111kOCCUt.
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k7w. -SO"S e-C-. do AAKtUakW (StVal 1111001LAY k fatfUll at
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#0 VoWft, -HtO Me. dke hiOWWOftr Comm
Ole 167P branch z drool the arfrim of the ca. 490
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As, lit;
t"My 9 Biasing
the H.0 to pmA.
3. U at"- a.&,. sole
(a the Inagsk. Me. ud (08 cPfffte*Y w(t*b Iwo
fougs, (be Boop-H&O Side- The tee 6
incesaing distance
aaALL~"WAC LKMTM CLAUWWATM No*
Banal& WAS am OAK, "ALAI 4K Gwv Aga
NL' at, 4 5 v
.1 W "9i, Alt a
',W W. it 44: tt
v4 Of
a
elk. 000 0 0. 0*0
des
so
Oew
00
T~ll
0. V. $h
gq, cla.imla.) 44
N ~~Tlae temp. coed. a (in HO
tek at w(aco aud tim oicart(l to 23.4-27.2 jiulceemewly 411
itiv
10 't!"O'k-algoot v".tr
4 IS d 11s
tex&i Aud -'a. f-jo. I, tooi. o
&W Ne HA PmqumhfY. tbi tUlt
=4-0, NO Ifi~c=k6ify bmad by vktkv. kcar
(M) havo lito" fm6l Ilaw. or mel((411.
a was 4crdZ-dZ&t* Koffatilitus TO a cl &68
.4 '" fL
too.)
00
0.0 4k Ofift 0
w
Wo 0
0,0
ves
too
too
"IN
09
NO*
64,000*0090
V*-j
t he ~'iuc;3 t
vrmprusu 0 rl~:I-otnr-
rost-:c,,rc,.,) thlf~!' 1;'JCI
3' T
"ZI
(111--ocrt -ivei. D", D
V I-) r 0, -- e F ,, 1 S, t1: c 1 - s
Faculty
j I
NIKOLATEV. A.V.; NEYMO. R.?.. -, NNVMN A ~. - ~
Characteristics of the stats of hiph polyter, Koll. :,Ivir. 19
no.1:121-124 Ja-F 157. (igat jo: 4)
1. Institut obshchey i neorgarlche-3koy khimll~ AN SSSR, f4oskva I
Voronazhsk'Ly tnzhenernc-strot-el3n~77 Institut.
(Colloids) (High moleclilax wolght riompa.uAs)
NVMAN, P. A.
Treatment of brucellosis at the faugotherapcritic resort L11jetak.
Klin. med.. Koskva 30 nn.5:43-47 Ray 1952. (CUM 22:3)
1. Of Lipetak Health Resort (Director - N. P. SwItin).
NZYMAY. P.A.; ZAGORUYKO. O.A.
F&zzgotherapy of rheumatism with articular and cardiac lesions at
the Lipetsk health rqaort. Klin. ned. 32 ro.10:49-52 0 154.
WaA 8:1)
1. Iz Upstskogo katrorta (dir. N.P.Svitln. konaulltant dotsent
felcalltstskoy terapavtichaskoy kliniki Voronechakogo neditsinskogo
Instituta S.B.Spahteyn)
(MUD THEWf. In various diseaset,
rhoum.heart dis. & rheum. arthritis)
(ARTHRITIS, RHZUKATOID, therapy,
mud ther.)
(RHEUUTIC HMRT DISM&SM, therapy.
mud ther.)
XCULY, Pavel Favlovich; MI10SLOSKIT, I.L., Innhemer. - roteenzent; KASLMV,
wi* a0- .dat takhatcliaskilch nank, reclaktar; SMCL"KIU. S.I.,
takhnichaskly radaktor; UWAROTA, A.F., takhnicheml.-ij, redaktar.
(Heating furnaces in forge shops] Nagrevallshchik pachei kuzaachns-
shtampavochnykh tsekhtev. Moskva, Gov. nauchns-takhri. itd-vo mashi-
nestreit. lit-ry, 1956. 122 p. (KRA 9:6)
(Furnaces, Heat treating)
lWYA11U., Alk-
NHI,A.N. P.Z.
I i ---
NevospLuteniaemye materialy v aviapromyshiennost,i. Moskva, Oborongiz,
1944. 135 P., illus.
bioliography: p.130-134.
Tji,le tr.: Noninfiammable materials in the aircraft industr-y.
TL697.F~~41i
SO: Aeronautical Scis-nces and Lviition Ln t~je SOV4et Union, Library of
Congress, 1955.
NEYV~V,I, P. Z.
Zashchitmia obrabotka drev--sJ.zrf v kolkhozrrjkh postroikakh. Z-Frotective
treELtment of wood used in collective farm buLldirgs2. Moskva, Sellkhozgiz,
195-1. 84 p.
"10: Monthly List of Russian Accesaions, Vol. 6 No. E November 1951
'j, M ~ I I I r'. 7, 1
1 ": "*,.,~:Jl , I'l- u., ~Vr J.ni,. ; I N.- K I, .,.,: , '. , u ~-n , '-f
lluw prc-ducl~:3 of tne Ele,:tric !"OLcr d ~ ad
,!y~ T,~. I ~- 4'.
ollt-ik,trotc;cm 32 -13-.~-. -14.1 . _-
I AL a ~L_l r. A 4. a a F r.A I A_W _Y~ .1 1 F4 M Cc Cc 6
00 Consisteittly smume cc* ts and cupid flitut'in of the
*0 milt. cWt he achic"d to OW deW of V615% J. NQ~;A
In viwace by Ow metkad ol Kulaco Tancrmns (C. .4. 14,
00 :1642) by pqtC. the mathate with satd. VaCl mka. pm.
a RmissM in tbm add . of CxCO_ SAmijar JmtVccmvmemt cc-
** sutis in ttk- dVtn.*Wilb %~$(41%*A)j I-V 11W p9thittlaa"
Wtilig "m at Xualtmie 04%. Mum
09,
o0
*0 1
00
f
*
0 IS'
U 09 A
0 o 0 0 0 0 0 0 0 0 9 0 a 0 0 0 9 0 0 M 0 0
T*OO * 0*00-0 0 IS 4- 0-0-0 * 4 0 0 0 0 :_9 % * 0_0 0 0 6
0
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L-T 4 AA a M U. 1_4 1 4 -
do t5al of (M G*Ft*(%o and ataccatim 00
N. F.1%einktr, R. F, Ndtilta stA C, A.
Phv, ('44'. it, q 4 14 45, le, mf I(xv-1 _90
forkall"'Ism t1vo,44i. V R ~ % 1, 711', Mrol
IS
tkl# A, Zj~J ft. #.dotte omk- 4 wii-, o,,,
sim of the dye particks wnd ttvii ism-T~ it. lit
COH arthat. wxb minimurn is tvA (Awmied -in addn. (4
ffene hUt (I ObWfTIE41 00 &M0. 0( WCjttf. me uAvaw .00
CT to he UnImotmillf. P. If R.
age
.00
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ir
-.00
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W. Q.f d" Q.,
I
I ir 6. -.3
a is
0 6 a 6 0 0 0 0 0 0 a 0
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to fit It
1
00 A
4T
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ad Momsdapiletdc I
In dw Peace" it a
&
00 &W R. Fokind.. Ore. (. Arm
. f.."
00 4193(l)-Thectseux.0tatr4l
00 were exant by I
141.1 "1.V= litristioc; . A disc
Craphis %howsp that ttw litratiols I
lcode tilveds a croduAl &,mel"
*41p revittle (4 fluruhs of distinct acid
rifililk-ta milli a A; eUvii-le vai
*0 8, Na.1i and NarCS. in %tww.- 4w
00 j 'haulgets durinallena. 11W to"
00 j T!" Pit- briotacily wesiliding
00 CS1 T(tratim wish
Tnulation of and NdaCO
of "W U'IY- Of AC tt"WC-$AntbA
wilts the incirladv4 cc(fujov Cal
C-"()- cad I with Is Initial 1, 14
lead" alint.4 S COMV419. itb a
00 with the oxiddlion; Plixems Orld it'.
7T__
1, A,
6 . a so*
riat" to tfirs KMITS(S, of -09
R. N41111AH V k"gin
cum Cturilln, during I h,
- timial toettkids 4 (ki.
silital of the readting
is llCl anti 4 lcta.V4 Ckv.
-00
of told alky. an,l In-
di
in thq
dt~" -f aging
-00
be -in g ih-l~its 4
(:
j
itio noitue 4 it. dwni
_0
.16M "I %,&Xs6 u, vul,
P cite iractiun; %A&i + A*
pcovirit the "VU
ri Vjjeom, with ai,,
40
4 diffetil SMI .
pies. TI(rgtkns with ~* a
ctirixte itsdkisce As de- oo
Mt. which is C'Mul-tM t
f.wtuals'n, of tit, sidt,
.00
00 .400
00
00 6 4,M it A woo
4*14AAI SON a
0
4 U 99 AV 10 It .4 a 't 4 It
0e 00 0 0 40 0 0 00 Q 0 0 q
0 0 C
, 0 0 0 4
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, I r 4 f a 0 0 ," -ja
IS it , I r x it a It a 9 10 a 16 IF is Al .1 cj .6 a a
IS ~t1.21 al 1*1 11. -1-A 9
-.1 -- -- ..0
00 c
00
00 Sdvcc Mcc-Acatled U A. w,
00 t muf R, F. Nclffma.41"d I (U. S. S. N I J. -00
Is lb orm. lt,pd fly VAC,C
,I,,- /a fr-w, plxft~ m", -d Ag-/n itilov. In a vautiflo,
00 a rv,
q- ,, I. .
00 so
04 ago
00
too
Wil,
to
a.- 4.4 4"
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a Cis
u 4 AT cp p to w a
IS 0
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se
0 IS 9
lot a
Of
.10-SL a
a
#*Wv;W.____
n a 0 J4 x a 9 x v 0 (A a IS be
Is, , I
Wedolks I pawn
cc of kt*4 0,170to"
r. (u. 8. IL) 0" MCO"d
couslaittd in placing A
in 3
A* xx Ina. and km Ato
It, lk, Ivi
at 'sos
NV. The am. c0 11,0 hithl cc tho cotton am~ then detd.
by the InstAw 4 DUMRAR (C. A. W 1304). The
%ittf. at adsochost 14`00io ta"vody ptogtoctioul to the coorm
J X(Olf 10 4110 WO, 5*0 41111 Cq?AIJ. 1'. - P., WtICIV P.
its ths ropqf p""M ad a giveas 44 h fayff of admothA ifjO
to a Wo. of a afm coots. of MCOR and P. (a The vapor
oCtOMI Of thill 1111111C. AAUC CdOWSItIC4 09 lWGa 111EC COMM
fakm 1",e. the *dmxpttm pMmtkl coo he C*kd. bv
mom of Pda., 'a equatim: 0 - R F to (P.JPI). Whel r
P9 It dk Cif the win. be(lor adtoeption
takes Owe. Thse cv~kteoce &d t larm oil bound 144).
um laudy hdd outta lay" and cm amirc, fimdy brid Wom
lay=, Wd OM thIC ILY&WALUC SthVA*Ce. aS 11111VICS(td 11V
pmmicam ksmcmdatom. its coulErmed. The amt. ad HvO
in the outer taym 10 lam-Ody propa"i0od to temp. in 11W
Weeal gtu&od. while the autt, held its the inwr (art i%
UI&Tcodcut It. Wreat ad Wate 44 water-
bisdaginammMoss. O.V.Uc(mamsaMR,H.Ndsn&n-
1JW. IS-tile-Eapts. Similar t4 thme with EdIff adaq.
wca usede with sq. tafta. of Wi-BuOH. g1wow dad went
T'headvirp-
Ike mvm ace dmirecivetok- e4 "wh tiveo Kilutc, but
o(kcrutu tho Irmisto OAV Sialike Ito tho" (W 01014.
11,11ULLMIC&L LITIRATude CLS TWOM tw4ttoc". I., AlIt&M-4 v st
6~66
I
IA Lv Is In J, It I 11A L S a a& a 0 6 1 W M 1 a 4 3 S
q im, a o
0 00 0
0 : 0 0 00 *so 0 00 0 0 0 0
coo
GO*
Coe
coo
too
90*
zoo
400
oil
006
004
00.4
*OR
sea
so's
4
:00
.1 OWT,
S.. sad a
tqvjmd. cat= vw.
Muscy'r sp-11 001a
"W
IWO5
to O"Mce go
dot got T-. th
raw to the I
I.CM.M.Magoddatswe
ced 0 W-i -1w $1 9 A 4 3 a I
It OV,
O's *we&* &a,*
0 a, of We 9 -Fe
~M~
q
d Idd Alf.
In swinver
z4a to the
a ta'd dew
the
as Irk
te vitimt httii" ~et.". the viap
sit
3) IkIciatlod ("am UnegultY bet- I
9 ado Is
chnelaywasda . (
al the shcating itrem P. bulk-adr4 nou-Ne'docilln Sow.
=s"OhOWOCOW .
am
an ft a
~ were found only accakkullY. mostj at tempo. kratc dus
0ownious q%"Uctur- ) viscositr is found at
I
.,
n
_
twow
,ire
bntb* z4
a z
1 C.. a
50
- 4
an U;~X". in the sw6w SwItnitate 12 + Ifto 88 - 690-
50% but an anauxly does appea at thAt compa.
H
+
a Out. at About W% at
AuvO
at 400. By statis(kal tteatOMT. Of - avocats ex-
tapoham to P - G. some ra~e-oltaw cur"M would q~
Lbe
v dm WCOM Is to I I pelic to cmfit of 2 Haw portims of diffelvA With
;
00-
a
c"A
%our COMM- an m
the low-P bn-b P-ig b the ori&
H.'. gram. if go. C=r woutd he %kwtoakA
-d- k--t shesdac N. Tbw
e well. d I
)K w t, L TWO, tin
w2cM(rOQ"!ej
k,.!j$ the &wdm
ck-
9w an d"M
'r
Sma & at I.
.
a ad Imply
Pwl side. Tbc~ c-~ts, '
i
-09
j,$**
see
as
use
we
NEYMAN, ii. E.
"The Problem of the COOfficlent of Temperature Conductivity in Jellies,"
Kolloid. Thur., 11, No. 2, 1A,~. Voronezki zotate Univ. -1948-.
NEYIAA~, 0. V.
VC-Itatle 011W4 AMicKtOtelf With Sol gel IfeadUflIjAllona
4914 wAh -ectac (if (off if If I thim'Up gotif 11 1 '4".1
If ..1"
11 1 %
4 ."k. III, -.1 .1" 1.
pil.i.AhIv iiiiii; It,, fit . A fit, I I, I it I'J"
.qdfI.'j fair, k""gulAti'm III A
'11.41 of".1ii"I I'% ... -Ot N 11,41 iji~-
J.".11 '1" 11 !' A N'w(III A't ... t --1
ITEYMAN j R. E.
USSR 600
Gelatine, Expamion(Heat)
Characteristics of thermal expansion of gelitin gels and solutions. DokI. All 3-94182,7
110. 3, red. I Oct. 1951:
SO: 1j2p!t],v List of Russian Accessl-pj-Librar7 of ConCress,june 1952. Uncl.
Ussit/chasistry - Gelm Wr/Ur 52
"gest lexpangion of Gels and High-Polymer Solutions,
1. Gelatin Gels," P. E. Neywann, Faculty of Chen,
Vora"th State Tj
-Kolloid Zhur" Vol XIV, No 2, pp 107-111
8tIA-I&4 the beat expansion by the dilatometric
wthoa' The volume effect Vhich customarily oe-
durs 1; phase conversions it; absent in the geln-
tiod or gelwbin. 'The heat expamaion coeff of
Selittin gel changes abruptly i~aching a max at a
defitkite temp. This is an anomaly discovered for
the Ist time. it is thought-possibla to consider
-V.1 AIM q..-
Calation as a critical phenomenon in the sense of
tl-- view of Se"-~nahenko, 'Tbur Fiz Xhim " vol ma,
-V 1463L, 1,47; Vol XX7, P 321, 1951; I'Dok Ak Nauk
gas?.- Vol L10all, No 2: P 331, 1950) regarding
genervClized critical phenomena and as formulated
for mlloidal processes by Nikolayev (Report at
the All-Union Conf on Colloid Chem, Kiev, Jun 1950).
I I
11, :1~4A: , yI.0.
J, I. " L
Ili eculiarit- c,:~ T"eraal :x-, of Jellies -tnj ~-r-_-Iatin -;o'L,1tj-cn--.1I DA.';p
62, :.c. 3), T p 14,19-42,:, 1V52.
USSR/Chemistry - Gels 21 Jan 52
"Peculia.rities of Thermal Mcpansion of Gels and
Gelatin Solutions," R. E. Neyman, Voronez;h State U
Mok Ak Nauk SSSR" Vol =II., No 6, pp 419-422
The tamp - vol increase (dilatometric) curves for
gals of varying conens of gelatin show a break at
3T-390- If the vol effect of gelatin is zero, then
the coeff of thermal expansion for the gel at a
certain temp undergoes an abnormal jump. This was
dot noticed by anyone else until now. Gelatin may
be eharacterized as follows: 1. There is no
212-134
thermal effect during gelation. 2. There also is
no vol effect during gelation. 3. At a definate
temD the coeff of thermal expansion undergoes a
sharp change reaching a max value. Aging of a gel
has no effect on these properties. The saw expts
vere performed on the saw gel after a period of
1.5 mos and showed no apparent change.
:5
lZTPLrIll, R. E.; Neynan, 0. V.
"On the Question of Sow of the Pecularities of Alb1mincus Jellies and
Solutions" (K voprosu o nekotory]-h csobennostyakh toplovog-o r,iFf--7,irc-niy&.
bel-ko%71,h studney i rastvorov) from the bcok Trud, of the -third All-Union
Conference on Colloid Chemist , pp. 458-463, Iz. All SSSR, I-loscow, 1956
(given at abovd C.-inference, Minsk, :21-4 Dec 53)
Autium: Voronezh State University, Chemis-~ry Faculty
NIKOLATMV, A.V.; NEYMAU. R.E.-, NATW, O.V.
Charaxteristics of tte 9 ate of Inigh po'-7mer ,els. Koll. 2hir. 19
no.1:121-124 Ja-F 157. (MLRA 10:4)
1. Institut obahchey i neorganichaskoy Ichimil AN SSSR, Koskva t
Voronezhakiy inzhenerna-stroltel'r~y7 institut.
(Colloids) (High molecular weight iompounds)
10TVAU, R.N.; KUDZRUKO, B.I.
Photometric determination of the interaction between no:!,ybdic
acid and sulfasalicylic acid in solution. Trudy VGU 57:75-30
159. (14IRA 13:5)
(Rolybdic acid) (Salicylic acid)
AUT HORS: Neymari, R E. ar-.d 0. A.
T I TLE Kinetics of Turbidity Change of Dilute Latices
During Their Coagu1ation by Means cf E1,z:ctrolytes
PERIODICAL; Kolloidnyy zh',;rnal, 1960, Vol 22, Nc, 6, ~~. 7-7-7-'~
1 ~ -1 "
TEXT: In the present letter to the editor the authors r~a,..orl or, t e
investigation of the agglomeration process of globulae cLirr--er- out by
means of light scattering and of the slow coagulai on of "lute synthi---ti~-
latices on addition of elecl.-rolytes. Various ele--trolytc-3 (CaCl, cr
NaCl) (Table) wer-~ added to a d:ivin,,,1 styrenp latex .--f the type CKC -'C-A~
(SKS-30-AR) (emulsifier: Nekal), which was .04 t-,me~i dillitei and' rict
dialyzedi the change of turbidity with time was observed Lip tr complete
coagulation of the latex. A HIM(NFLI) nephelomt-ter t---as u-?~ for the
measurements, The concentra-.ion gradient of the refracti.,~.- irld-)'. of tne
dispersions was determined on a refractometer of the YIPT-2,7, ',IRT-23)
type, The kinetic curves of the- turbidity chanEe -e;ere ceterj,ined f.--r
Card 1/3
Kinetics of Turibidi fy Cr -.Inf~t~ ii:
Sy n t he t i c La t i c e s Dui i r.610L6 0
Means of Electrol~/tes
of tne iatex samples (Ir~, I~H '0 r f 3
saturat ion of the surf ace of the globulae wi th the emu. si f i r 70,/(,
average radius of the globulae, accordinL to turlli !1~,
T~r~ parallel experiments wer,-- T Y., r -. 11 : , 4 -~.-
elec-trolyte vas found to cau--c- th- iig6lomr-raticn of ~,~Dtllla, T`-
increase in turbidit~- ahich lnlicat,~!s this ~j~-
after a certain time. The increasii,f, of -nt: 6 -b-.-I-.a surfs:-.
with the emulsifier, ,,;h-,':!h tak,~s dur-.ng the re--S--'~S
in the formation of an adsorption - solvate 2a~~Pr. This ccncI---,-Ies t*-e
first stage -,)f the process. The fLirther, &!Gwer co-~rs- -' tl~--
is probably due to the of --ver~--min6 -he
resuitin6 from the pr.-tect1-v--:, uction of tY- scivate la,,Er. The prim~ir,-
a,L~61cmcration is a(-c,21~ratrd by an inr-r -1.,~- in thc
tion. The dimensicns ~f the r~isultaritl ag6fr~ga-- :~Cn-
nection. This is d,le to th,: fact that --ie '-f *h::
on the state of' the i*s
An increase in concentrati-cr, L
potential ba-rrier. Th~
t rt
C-,
K i n e t d (-, s D f Tu r 6 i a i tj C U
Sy n t he t i c Lat i c, ia:7 D,, r i r~i,C C /B C
Mean s of El ec tro 1j t es
as--endirig of the coagulated di spers' ci, t~-,e rt-,su: t,-
were also obtained for a number of other 3,1[11~1t:j ~',f ttiizi !at..),- Thort
1 figure and 1 table.
ASSOCIATION: Voronezhsk iy univ ers-- , (-,,t Khi m' che sk f Lik-,~ l't V:) ron~-
University, Chemical Divis-~cn)
SUBMITTK: July E4, 1'16C
Card
r
S/0%61/02,11'006/004/005
B119 B101
AUTHORS: Neyman, R Lyashenko, 0. A, Kirdeyeva, A. P-
Yegorov, A. K-, Kiseleva, 0. G-
TITLL4 Investigation of stability and coagulation of' synthetic
latexes I Effect of adsorptive saturation of the gbbule
surface by the emulsifier
PLRIOLICAL: Kolloidnyy zhurnal, v, 23, no. 6, 1961, 752 - 738
TEM The coagulation k-inetica of dilute synthetic latexes as depundent,
on the adsorptive saturation of the globule surface by the emulsifier
(Nekal) was investigated. Experiments were conducted with divinyl
styrene latex of the type CKE-3o-,AP (SKS-30-IR). The production of
latex specimens differently saturated with emulsifier was carriLd out-
(1) Dialysis of the latex for 50 days, the adsorptive saturation with
emulsifier having been reduced. down to 191o. The dialyzate was divided
and mixed with various amounts of Nekal, (2) The latex was alac dialyzed
Specimens were taken during dialyzing (maximum saturation of the globUlE
surface Aj75%, minimum N11%). The degree of surface saturation was
Card 114.
0!,:,
5/069/6 l,'0-;: 3!C'_ 6/~00
:Investigation of stability- B1191'B101
determined by adsorption titration with aqueous Nekal solution (inaica-
tioni change of the surface tension). Coagulation was brought about by
means Df CaC1 and NaCI-, respectively The course of' coagulation was
2
observed on the basis of turbidity (measuring instrumen-Tz ~tM (NFM)
nephelometer). The value of the concentration gradient of the refractive
index of dispersion, waa determined by means of fi.KPq 25 (IRF-25)
re"ractometer. The macroelectrophoresis of latex specimc!ns was conductecl
with an instrument according to 1. 1. Rabinovich aud Ye. V. Fodiman
(Zli, fiz. khimii 2, 336, 19,11). The ~-potential was calculated on the
basis of data obt7ined from the electrophoresis. Resultsi '2he coagula-
tion of latex not completely saturated takes place in two steps. The
duratIon of the first step (characterized by a relatively quick turbid.ity
of thEt solution) was 80 - 81i min for the least saturated latex specimenH,
and increased with increasing adsorptive saturation. Explanationi The
quick coagulation of the globules occurs in places not covered by
emulsifier. The size of the aggregates developed after this first coagi-
lation step decreases, therefore, with increasing surface saturation of
t~)e initial globulej. The i3ocond utep takes place much more slowly thln
the first This is due to the necesi4ary overcoming of an additional
Card 2/4
3/069/61/0-2 5'100s'100410~
1 nv - o t i ga t Ir. r, o f a t. 51 b ~ 1 1 t, y B, 9/Blo.:
pctt-:~zitial barrier. The firs,: phase could not be estaDl..sned ":)r
coajplet--~Ily saturated latex; coagulation takes place frora the start Ac -
-Cl'dLn,g to the second phase. The mean radius of the inLtiall globules
wao ':)0 - ~'C) M11.1 The radlue of the tiggregatoo formed aft~,,r th(, fircit ru
agulation step was 43 - 58 mp, The surface tension of thf! 1PJPx de
cr,~a:ae3 with increasing saturation and is constant of further Nekall
additions after the total saturation The ~-pofential changes only
slightly within the degrees of saturation investigated- 51 mu fcr latpx
saturated up to 25 3(y/o; 61, mv for completely saLrated late.t A de.
pendence of the electrophoretic migration rate of the globules on the:.r
adeorptive degree of saturation was not established, Studies by
B, V. Deryagin (Tr Tretley vses. konferentaii po kolloidnoy Ichimii, Iza
All SSISR 1956, str 22,c), P A. Rebinder (Sb.. "Kolloidy v pishrhevoy
prom-uti", 2, 1949, str. 21), and S. A. Glikman and Ye P, Korchagina
(Ref, I- : Kjlloidn zi- 19, 657, 1957) are mentioned, There 'ire 6 1,119-
ures, I table, and 15 referencest 9 Soviet and 4 non Soviet The twD
mast recent references tc English-language publication.13 read as folloNs,
J. T G Overbeek, Advances in Coll. Science, N J , _3, 97, 191~0,
S. H Maron, W, W. Bowler, J. Amer Chem Soc-, 70, 389~. 'Q46'~
Card V4
Investigation of atability
0
ASSOCIATIONt Voronpzhakly universitet, Khim~cheokiy fakul t~t
Laboratoriya vysokomolekulyarnykn soyedineniy iVrr--)n-zL
University, Livision of Chemistry Laboratory )f High
molecular Compounds)
SU'BMITTED, August 27, 1960
4/4
hEYHAN.4 R.E.
Chargeteristics of the thermal expansion of protein
gels and sols. Vysokom.soed. /+ no.9:11+04-1410 11 162.
NIMI 15:11)
1. Voronezhskiy gosudarstvenn~ universitet.
(Gelatin
(Expansion (Heat))
19801
"'1069101024100410031&J3
;XTHORSt Neyman, R. E., Lyashenko, 0. A.
TITLE i Investigation of the stability and coagulation of syrithotic
latexes. 2. Dependence of the rate of fir:~t stage of latex
coaL-ulation on concentration and valence of the coagulatin-
ions.
FERIODICALs Kolloidnyy zhurnal, v. 24, no. 4, 1962, 494 - 496
T-EXT% Previous papers (Kolloidn. zh., 22, 757, 1~60; ibid., 23, 732, 1961)
showed that the coaCulation of'divinyl styrene latexes bj electrolytes
pricee-ds in two stages. The slow first stage was here studied nephelo-
..;otrically in r-KC-30AP SKS-30AR) divinyl styrene latex with Nel-cal as
emulsifier. The latex ~dry residue 7.5' /,;) was diluted 5-jo3 - jo4 times
?H - 6) and coagulated with NaCl, CaCl 2' or NdCl.,. Results: (1) The
coagulation time t (300-50-0 min) of the slow staL~e decreases witn increas-
0
ing electrolyte concentration. 'lihen rapid coagulation sets in, 1; (3-7 mii
tecomes independent of electrolyte concentration. (2) The values found
for transition from slow to rapid coagulation were:
Card 1/2
51069162 1 C24,10r"410`~
0
Investigation of the stability ... B101/3136
A B vhere A is the content of P-Tailsifier
NaCl CaCl 2 NdC1 3 in the latex (in of rubber);and
B is the elctrolyie concentration
1.35 16o 2 0.05 (mole/1).
3-90 240 4 0.20
6.(,,o 460 7 0.25
7.60 560 a 0.30
,If the CaC12 concentration is 1, 60 - 80 times more NaGl, but only 0.03 -
0.05 NdC1 3 is required to reach the transition point to rapid coaf--i'Latir,ri.
This is in good agreement with the Schultz-Hardy rule. Hence, the exis-
tence of a relation between the first stage of slow coagulation and the
electrostatic factor of the agrregate stability of latexes is confirmed.
There are 2 fi,-ures and 1 table.
AS~DOCIATIONt Voronezhskiy universitet, Khimicheskiy fakul'tet, L,-Iborat-,r~e
v.vsokomolekulyarnykh soyedineniy (Voronezh University, Divi-
sion of Chenisitry, Laboratory of' High-molecolar COi,;POU,)d&)
MZi-iITTEDs August 2, 1961
Card 212
S/069/62/024/005/007/'010
B106/B186
AUTHORS3 Neyman, R. E., Verezhnikov, V. N.
TITLE: Stability and coagulation of synthetic latdres. 3. Effect
of the pff on the kinetics of slow coagulation of divinyl
styrene latdxes by electrolytes
PERIODICAL: Kolloidnyy zhurnal, v. 24, no- 5, 1962, 593 - 596
TEXTs The effect of a pH of between 2 and 10 on the kinetics of the slow
coagulation of two dilute divinyl styrene lat6xes, types CKC-30-APK
(SKS-30-ARK) and CKC-30-AP (SKS-30-AR) (with.colo'phony and Nekal as
emulsifiers) was studied nephelometrically. U01 and-CaC1 2 were used as
coagulants. With any pH value, coagulation proceeds in two stages. Only
the first stage was studied, the kinetics of which is determined by the
overcoming of an energy barrier which to due to electrostatic repulsion
-when the ion atmospheres are superimposed. This first stage of ooagula-
tion depends on the pH value. The rat9a of coagulation in the neutral and
alkaline regione are practically independent of the pH value for both
latices. At pH