SCIENTIFIC ABSTRACT NEYMARK, I. YE. - NEYMARK, M. YE.

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• Collection: Scientific Abstracts
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• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 8
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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S/020/60/132/06/37/o66
,-4400 B004/BOO5
AUTHORS: ark...19 Ye. , Chertov, V. M._,__ sheynfayn, R. Tu.,
Kruglikova, N79_
TITLE: Synthesis of Specific Silica Gels by Modification of Theix
Surface
PERIODICAL: Doklady Akademii nauk SSSR, 1960, Vol. 132, No. 6,
pp. 1356-1359 VX/
TEXT: It was the object of this investigation to give basic properties
to silica gal by means of chemical modification, thus increasing its
capacity of adsorbing acid substances. Hydrated samples of coarsely
porous silica g were treated with mono-, di-, or ~riethanolamine:
a) at 100 - 16081C in a glass flask with return-flow cooler, or b) in an
autoclave at 160 - 2500C. The content of aminoalcohol groups in the modi-
fied silica gels was determined by washing with titrated hydrochloric
acid and back titration of the extract with lye. The silica gel adsorbed
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81412--
Synthesis of Specific Silica Gels by S/020/60/132/06/37/068
Modification of Their Surface B004/BO05
1.2 - 13-5 milliequ iva lent 9 of ethanolamine per gram, with 1.2 - 1.75mequ/g
being bound very strongly, probably by chemical means. Fig. 1 shows that
the adsorption of methanol vapor was reduced in the case of modified
silica gel. The adsorption of acetic acid was increased (Fig. 2) like
lion4of diethyl amine was
that of CO2 gas (Fig, 3)t whereas the adsorpt
reduced (Fig. 4). These data confirm that desirJ properties can be
obtained by suitable treatment of silica gals. It is assumed that also
a selectivity for basic substances can be attained by treatment with
acid radicals. There are 4 figures and 16 references: 13 Soviet,
2 English, and 2 German.
ASSOCIATION: Institut fizicheakoy khimii im. L. V. Pisarzhevskogo
Akademii nauk USSR
Rnatitute of Physical Chemistry imeni L. V. Pisarzhevskiy
of the Academy of Sciences, ukrsSil)
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31141.-
Synthesis of Specific Silica Gals by 3/020/60/132/06/37/06E)
Modification of Their Surface B000005
PRESENTED: February 22, 1960, by M. M. Dubinin, Academician x
SUBMITTED: February 20, 1960
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2256
S/1907V/003/005/006/014
BIOI/B218
Neymark, I. Ye., Chuyko, A. A., Slinyakova, I. B.
Olefine-substituted silicas as active fillers of polymers
Vysokomolekulyarnyye soyedineniya, v.
TEXT: The authors varied the properties of silica by substituting the OH
groups of its surface, and studied the effectiveness of the modified silica
as a filler of polymethylmethacrylate. Since the presence of double bounds
on the surface of the filler promised an especially high activity, the authaz
modified coarse-pored silica gel, silipur (fine-disperse silica), and pow-
dered silica gel by the following methods: 1) introduction of the allyl
radical by reaction of an organomagnesium allyl compound'and silica chlorinat-
ed on its surface; 2) treatment of chlorinated silica gel with allyl alcohol
in the autoclave at 2000C for 2 hr; 3) treatment of silica gel with methyl-
vinyl dichlorosilane vapor and subsequent removal of the nonreacted chloro-
silane by heating in vacuo to 2000C; 4) estorification of the nonchlorinated
silica by allyl alcohol at 2000C for 2 hr. The results are listed in a
table. The quantity of the organic substance chemically sorbed on the s-ur-

Olefine-substituted
2 P-563
S/19 61/003/005/006/014
B101 YB218
face of silica was determined by bromination of the double bond; it is termed
"iodine number." In the samples 8-10, the methylvinyl dichlorosilane
chemically sorbed was determined from the increase in weight. The sorption
isotherms for methanol, benzene, and heptane showed that the adsorptive power
decreases with increasing substitution of the OH groupd by unsaturated
organic radicgils. Fig. 1 illustrates this phenomenon for silica gel modified
by allyl radicals. The same behavior was exhibited by silica gel containing
methylvinyl radicals. Samples of the modified silica gel were used as
fillers of polymethylmethacrylate (MA). 0.1% benzoyl peroxide was added
to methylmethacrylate, and polymerization was carried out (with varying
quantities of fillers) in sealed ampoules at 600C for 20 hr. Fig. 3 pre-
sents the thermomechanical curves of the polymers obtained. The samples
1, 2t 3 indicated in the Fig. were soluble in boiling dichloroathane after
7 hr, while samples 4, 5, and 6 were only swollen even after 50 hr. Compared
to sample 1, the vitrification temperature of sample 5 increased by 120C,
and that of sample 6 by 190C. The double bonds of olefine-substit,;ted
silica caused an intense cross linking of P181A. Thus, the physico-chemical
properties of polymers can be improved, and the cost of polymers can be
reduced by the use of modified silica. There are 3 figures, I table, and
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Clcfine-substituted ...
S/1 90/61 /OC3 /Cc :,z/CC6/01,'-
_,~j C! /3 1 16
15 -~efere.lces: 13 Seviet-bloc and 2 rcn-Sov-4n'-'--'--,,c.
2; 1 a n-.,-,-i ae b'- i c a t I -~ n r e ad 3 -1 S f o 11 C 3 - C ~z: S
T.- H. Zvart, Indian Ftubber 3,ili., 1'1)5C,, :T 116, lv~.
ASSOCIATION: . Institut fizicheskcz~ k114-mii im. L. V.
(Inat,-'t-,-,.te of -Ph.-sical Chemistry im. L. .7.
UkrSSR)
S "ID' I, T T E D Ju 1 2 0 , I ~ 6 0
Ta~,le : Content of radicals in modifie(. silica k-el.
L o L,,,) n d' -1) number of. samples; 2) radical; 3) modi-14-cation i~~ethod; 4) number
of radicals, ulmole/u silica [I-el; 5)) iodine nurber; 6) synt!-.esis of ailyl~
7) dittlo; 8) methylvinyl; 0.) organo-ma!~-nes um; IC) chlorinated silica ~ei
treated with alcohol; 11) egterification; 12) treatment with crcano3ilicon
cor.Pounds. A,
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olefi.ne-sl;bstitute
CHOro D3;lltlfaln
t
2
3
4
5
6
7
8
9
to
p p
Oro me
S 11
o/61/003/CO5/CC6/014
BIOI/B218

Ae..OAUIZ Ilfulf)
clf4jl~ IFT
rNITIT93 0,25 3118
0,05 8,80
0.75 9,33
~1)006PL160TICB CII;TPTO&f X;IOP"- 1,03 13,25
ponamtoro cunnfwrena
(3To ;i,,c IP5 14,0
1,57 19,6
1,71 21,g
~I,~6PIIGOTIVI i(pewinflopra- 0,78
jjUqCCjtjj.%(n Coegl%flelinflikIff
C~Yro ;il*v 1,23
2,23
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S/1 90 161 /003/CC5/Cr."/C 14
Clefille-substituted ... B1 Ol 3218
Fic. I: I! o r T) t i on i s o t h-6 rL-. s .
L c 17 nd e
1 ) r7. thanol; benzene; 6 ) heptane; 1 f a 1 3 a.,.- :7 1 es a7
no- 4, 3) sa,.,i.;)le no- 7; M) adsor,ption; n) -mmnolol/c.
Card c/6
W mcflula
P/P

Clefine-substituted'
FiC. 3: ThermomechLic'al
i:roperties 9f the pblymers'.
.LeC:end: 1) 1"42,.'A without
filler, 2) 2-55%) initial
lc,
a. 3
s
l I ith 2.5Vo -)rOPYI
oilica; I ,,ith 2-5~~ allYl
5 with 5c allyl
silica; 6 with 7.5~o allyl
oilica; a~ temperature.
3/-1q 61/003/CO5/C)06/014
3101 YB21 8
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fly. 3

NEYMARK.-I w- - PIONTKOVSKAYA, M.A.; LUKASH, A.Ye.; TYUTYUNNIK, R.S.
Synthesis of artificial zeolites arA study of their adsorption
properties (with sumaary in English). Koll.zhur. 23 no.4:
454-461 JI-Ag 161. OADbI 14:8)
1. Institut fizicheskoy kbimii AN USSR i.m. L.V. Pisarzhevskogo.
(Zeolites) (Adsorption)

CHERTOV9 V.M.; SHEUFAYN, R. Yu.-, KRUGLIKOVA, N.S.;,nm~Kq I.Ye.
Stepwise methosylation of silita gel and its adoorpticn properties.
Ukr. khim. zhur. 27 no.2:190-196 161. (Ma 14-3)
1. Inatitut fizicheskoy khimii im. L.V. Pisarzhovskogo AN USSR.
(Methoxylation) (Silica)

NEYMARKp I. Is.; SL-INYAKOVAt I.B.
Adsorition properties of silita gals =dified by dimethyldichloro-.
Alane. Ukr. khim. zhur. 27 no.2:196-205 161. OMA 14:3)
1. Inatitut fizichookoy khimli Im. LiV. Pisarzhavokogo AS 9=,,
(Silica) (Silane)

PIOMTKOVSKAYA, N.A.; NEYMARK.-I "-ZHUGAYLO, Ya.V. (Zhuhailo, IA-V.1;
SxIY, ~ovvjkj'~ E.H.]
KUKOV '19
Change in the structure of titanium gel catalysts in ethyl
alcohol dehydration. Uk-r. kbim. zhur. 27 no.4;447-4y~ '61.
(MIRA 14:7)
1. Institut fizicheskoy khimii im. L.V.Pisarzhevskogo AN USSR.
(Titanium) (Catalysts) (Ethyl alcohol)
a

5- 111r
9 ,ALI "I
AUTHORS:
TITLE:
PERIODICAL:
S/02'01'1'/138/004/020/023
3103/B203
Neymark, 1. Ye. and Chertov, V. 111.
Adsorption and ion-exchangin,,, properties of silicas
modified by a radical with acid function)
Akademiya nauk SSSR. Doklady, v. 138, no. 4, 1961,877-879
TEXT: The authors atteMDted to Drepare silica gels modified by radicals
with acid functions to give them a specificity as to the adsorption of
substances with basic properties. jis a radical of the said ty'pe they
chose the sulfo group for the modification of (1) laboratory-made silica
eel of uniformly coarse grain, and (2) Aerosil, a highly disperse prepara-
tion of nonporous silica. Both preparations were sulfonated in two
stages: (A) The spccinnena dried in vacuo at 2000c for 2 hr were phenylated
with diphenyl dichlorosilane. (B) The phenyl groups thus formed on the
surface were sulfonated with H 2s0 41 the apocimens washed with distilled
water, and dried at 180-2000C. The scheme illustrates the process:
Card 1

24059
S/020/61/138/004/020/023
Adsorption and ion-exchanging properties .... B103/B203
S1 _0H 1-0 r.1i,
> >S' 11-0 CoH40sti
+ C1.S'(CttY.I \ / +",Sol. sc~
0 S1 \ S1
>SII-OH licl >~ 1-0 / \CIHS - >SII- 0/ \C4H4S0,H
Thus, part of the OH groups on the surface was replaced by a compound
containing sulfo groups. The ion-exchanging properties of the sulfonated
specimens were determined by the value of the static exchanging capacity
on the basis of the exchange from a 1 N aqueous NaCl solution. At the
same time, the authors determined the pH value of the equilibrium solution
formed by the exchange of 1r" of the sulfo Sroups for the Na+ of the
3olution. They found that the results of the ion exchange on sulfonated
sp,:,.cimens strongly deviated from those on initial specimens of both
preparations. The pH value of sulfonated specimens,in equilibrium solu-
tions is 1.6 - 2, i.e., the exchange proceeds in strongly acid media. On
non-modified silanol silica gel, such pH values give no ekehange. Thus,
the authors found that the presence of a strongly acid, ionogenic sulfo
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240
') 6
3/020 6!1/13819rj4102Ij1()23
Adsorption and ion-exchanging properties ... B10373203
group covalently bound to the surface cf the.silica gel and Aero:31l
produced an ion exchange, also in strongly acid media. Tnisis a'so the
case if the hydrogen of the outer surfane of the double layer of the
silica gel is neither capable of dissoe,,iaticn nor -.~xchanga because of its
much weaker protonization as compared to !hP hydrogen of 'he gulf'o group,
The changed adsorption properties due to the modification may be caused
by a change of the porosity or of the ~Ihemical nature of the surface, To
eliminate the influence of porosity, the authors studied nonporous Aerosil.
They recorded the vapor adsorption iao~herms of benzene, heptane, methanol,
and diethyl amine on initial.. on-phenylated, and on~sulfonated specimens.
The adsorption of all vapors was strongly reduced by phenylation. For
sulfonated Aerosil, the adsorption isotherms of benzene and heptane were
sliLrhtly higher than for phenylated one (due to partial destruction of the
phenyl.silyl coat in sulfonation). On the other hand, these curves for
methanol and diethyl amine on aulfonated Aerosil were not only higher than
on phenylated one but even highe.- than in the initial product. Hence, it
is concluded that the adsorption of methanol and diethyl amine on
Bulfonated Aerosil is based on chemcsorption due to interaction of their
molecules with the sulfo groups. Besides, desorption shows that 'he
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24059
S/020/61/138/_)04/02~,/023
Adsorpt-ion and ion-exchanging propertIlks .." B105/B203
amount of methanol and diethyl amtr..,e irrevartiibly bound to sulfonated
specimens is larger than that on phenylated and initial specimens. For
the molecules of methanol and diethyl amine. the sulfo groups represent
active adsorption centers increaBing their adsorption. For the molecules
of benzene and heptane, however, the sulfo groulls have not the function of
such centers. This reduces the adsorption potential of modified AeroBil
compared to the vapor of the two latter substances, Specific adsorbents
and catalysts can be produced by modifying silica gels with radicals of
acid or basic functions,. In particular, sulfo silica gels may be used as
non-swelling ion exchangers in strongly acid media. Since the framework
of such ionites consists of heat-resigtant silica gel they can be used
at higher temperatures than ion-exohanging resins. There are 2 figures,
2 tables, and 12 references.' 10 Soviet-blor., and 5 non-Soviet-bloc. The
reference to an English-language publication reads as follows; Ref. 4.
C.J.Plank, J.Phys.Chem., D79 284 (1953),
ASSOCIATION: Institut fizicheskoy khimii im. L.V. Pisarzhevskogo 1kademii
nauk USSR (Institute of Physical Chemistry imeni L. 11.
Pisarzhovskiy of the Academy o1 Sciences UkrSSR)
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PME I BOOK EXPLOITATION SOV/6246
Soveshchaniye po toeolitam. lot, Leningrad, 1961.
Sinteticheskiye tseolityj poluahaniye, isoledovaniya I primeneniye
(Synthetic Zeolites: Production, Investigation,and Use). Kios-
cow, 1zd-vo AN SSSR, 1962. 286 P. (Seriest Itat Doklady)
Errata slip Inserted. 2500 copies Pritited.
Sponsoring Agency: AkademLy aauk SSSR. Otdaleniye khimlohe~kJlcb
nauk. Kcalslya po toeollGam.
Reap. Eds.s M. M.~Dublnln, Academician and V. V. Serpinskly, Doctor
of Chemloal-Solonces; Rd.s Ye. 0. Zhukovskayaj Tech. Ed.s S. P.
Golub'.
PURPOSU: This book to intended for scientists and engineers engaged
In the production of synthetic zoolltes (molecular sieves), and
for chemists In general.
cam 1/# A

/.- #0
Synthetic Zoolitess (Cont.)
sov/6246
COVERAM The book is a collection of reports presented at the First
Conference on Zeolites, hold in Leningrad 16 through 19 Varch 1961
at the Leningrad Technological Institute 1meni Lensovat, and Is
purportedly the first monograph on this subject. The reports are
grouped into 3 subject areass 1) theoretical problem of adsorp-
tion on various types of coolltes and methods for their lnvesti-
gation, 2) the production of zoolites, and 3) application of
zoolltes. So personalities are mentioned. References follow In-
dIvidual. articles.
TABLZ OF CONTMM s
Foreword
DubInIn, H. M. Introduction
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Synthetic Zeolitest (cont.)
Tsitsishvili, 0. V., and 9. D. Bagratishvill. 1R Spectra
of Water and Heavy Water Adsorbed on Zeolites
Shirtnakaya, L. P., an ~ermolenko. Applicability of