SCIENTIFIC ABSTRACT KUZMINSKIY, A. S. - KUZMINSKIY, A. S.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000928110006-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 20, 2000
• Sequence Number: 6
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

Category : USSR/Atomic and Molecular Physics - Physics of High-Molecular D-9
Substances
Abs Jour : Ref Zhur - Fizika, No 2, 1957 No 3615
Author : Kuzlnlmskiy, A.B., Cher1kova, V.F.
Inst : Scientific Research Institute of Rubber Industry, Moscow
Title : On the Nature of the Optimm Vulcanization of Natural Latex.
Orig Pub : Dokl. AN SSSR, 1956, 107, No 3, 428-431
Abstract In the vulcanization of unfilled mixtures of natural latex con-
taining accelerators (thiuram or diphenyl guanidine), the maximum
amount of mobile sulphur (capable of exchange) corresponds to the
optimum strength. When'polysulfide sulphur is extracted from the
vulcanizates with the aid of !~2SO , the strength is decreased,
particularly at the optimum. Nb-rWtolon is observed when vulcanizing
with thiuram. -4ithout iulphur, i.e., the presence of polysulfide'bond3
is an essii~tial condition for the reversion. Swelling of the vulcanizates
in vaseline oil (to the limit and an increase in the test temperature
(in the range from'25 to'140P~ cause 6 shirp.reduction in the tearing
strength, this leading to the conclusion that the role of the transverse
bonds lies principally in theii favorable effect on the orientation and
crystallization of the molecular chains.
Card 1/1
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"Surface activity and particle size of carbon blacks," a paper
presented at the 9th Congress on the Chemistry and Physics of High
rolymers, 26 Jan-2 Feb57, Moscow, Rubber Research Inst,
B-3,084,395
-~-T ;.jjj~. 1~7
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K-t -z,/-n /1) s /C/ Call Nr: AF 1154947
A.UTHORS:, Kuzfmins/kiy/. A.S., Lezhnev, h.N., Zuyev, YU.S.
~ITLH: Oxidation of Natural and Vulcanized Rubbers (Okisleniye
kauchukov i rezin)
PUB.DATA: Gosudarstvennoye nauchno-tekhnicheskoye izdatel'stvo
khimicheskoy literatury, Moscow, 1957, 319 PP.,
5,000 copies
ORIG.AGENCY: None given
EDITORS: Babushkina, S.I.; Tech. Ed.: Lurlye, M.S.
PURPOSE: The monograph is intended for scientific and engineering
personnel of the rubber industry, and for specialists
in allied fields of chemical technology.
Cr-,rd 1/10

Call Nr: AF 1154947
Oxidation of Natural and Vulcanized Rubbers (Cont.)
COVERAGE: The book discusses aging of natural and vulcanized rubbers
caused by oxygenj, ozone, high temperature, light, mechanical
stress and catalysts. Methods of studying aging and preven-
tion of aging are reviewed. PersonalitieB mentioned include:
Angert, L.G.p Belitskaya, R.M., Degteva, T.G., Lyubohan-
skaya, L.I., Mayzells, M.G., Peschanskaya, R.Ya., Popova, Ye.E6,
Postovskaya, A.F., Xhitrova, N.G., Shemastina, Ye.V.,
Shokhin,, N.A., Shanin, L.L., Kargin, V.A., Medvedev, S.S.,
Dogadkin, B.A., Dolgoploskly, B.A#. Rebinder, P A.
SlonlAskiy, G.L., Bartenev, G.M., Abkin, A.D.,
linger, S.A. There are 42 references, 19 USSR, 20 English,
2 Oerman.. 1 French. There is a bibliography at the end
of each chapter.
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Call Nr: AF 1154947
Oxidation of Natural and Vulcanized Rubbprs (Cont.)
TABLE OF CONTENTS
Preface 5
Introduction T
Bibliography 12
Ch. I Themal Oxidation of Natural and Vulcanized
Rubbers 13
1. General considerations
13
2. Effect of high temperature on natural and
vulcanized rubbers 22
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Call Nr: AF 1154947
Oxidatio n of Natural and Vulcanized Rubbers (Cont.)
3. Structure of'natural, rubbers and their reactivity
to oxygen 28
4. Free (autocatalytic) oxidation of natural
3~ubber 35
5- Oxidation of natural rubber in solutions 53
6. Oxidation of natural rubbersin the presence of
antioxidants 55
7. Oxidation of natural rubbers in the presence
of various ingredients of vulcanized rubber
mixtures 76
8. Oxidation of vulcanized rubbers 89
9. Catalytic oxidation of natural rubbers under
the action of metals ofalternate valency 100
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C111 Nr: 0 1154947
Oxidation of Natural and Vulcanized Rubbers (Cont.
10. Action of various oxid1mrs on natural rubber 110
Bibliography 113
Ch. II Aging of Natural and Vulcanized Rubberis by Air
(Aging by Light) n8
1. General considerations
118
2. Oxidation by light 125
3. Effect of light on various natural rubbers 142
4. Role of rubber-mixture ingredients in the action
of light on natural and vulcanized rubbers 145
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Call Nr: AF 1154947
Oxidation of Natural and Vulcanized Rubbers (Cont.)
5. Protection of vulcanized rubbers from the effect of
light 153
Bibliography
163
Ch. III Aging of Natural and Vulcanized Rubbers by Air
(Effect of Ozone and Light and Ozone) 168
1. General wnsiderations 168
2. Effect of ozone on undeformed natural and vulcanized
rubber 171
3. Effect of ozone on deformed vulcanized rubber 173
4. Structure of natural rubber, its chemieal resistance
to ozone and cracking ozone 18o
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Call Nr: AF 1154947
Oxidation of Natural and Vulcanized Rubbers (Cont.)
5. The role of some ingredients in cracking of rubber
by ozone 183
6. Combined action of light and ozone on vulcanized
rubber 186
7. Increase of vulcanized rubber resistance to cracking
by ozone 193
Bibliography 200
Ch. IV Oxidation of ValcanZotes subjected to Mechanical
Stress 204
Bibliography
218
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Call Nr: AF 1154947
Oxidation of Natural and Vulcanized Rubbers (Cont.)
Ch. V Oxidation of Natdral and Vulcanized Rubber by
Oxygen During Technological Treatment 219
1. The role of oxygen in the rolling of natural rubber 219
2. Oxidizing processes in the vulcanization of natural
rubber 226
3. The role of oxygen in reclaiming rubber 223
4. Effect of the chemical nature of solvents on the
oxidizing destruction of the swelled vulcanizates. 235
Bibliography 248
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Call Nr: AF 115495T
Oxidation of Natural and Vulcanized Rubbers (Cont.)
Ch. VI Methods of Testing the Aging of Natural and
Vulcanized Rubbers 250
1. Chemical methods of testing 251
2. Mechanical methods of testing 26o
3. Methods of aocelerating aging of rubber 2T8
Bibliography 294
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Call Nr: AF 1154957
Oxidation of Natural and Vulcanized Rubbers (Cont.)
Ch. VII Oxygen Diffusion and Solubility in Natural and
CA
Vulcanized Rubbers 2,-
1. Oxygen solubility in natural and vulcanized
rubbers
2. Oxygen diffusion in natural and vulcanized
rubbers
3. Solubility of ingredients in rubbers
4, Oxygen diffusion and kinetics of rubber
oxidation
Bibliography
AVAILABLE: Library of Congress
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298-
303
310
314
318

--VR-I-K- OOT. KO.
TA (7) PRAM I b= &IMITATION 3OV/1365
FAtOritay I vissoyummoso "V&S%chwdya po spoictroakapil. t. It
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POSTOVSKAUO A*F*; SALIKOVp MeAe; KUZINIIFSIIY A.S TAT]ff$EIY, T.K.
Structural changes of sodium-butadiene rubber in the process of
li&t oxidition.- Fix. abor, no.3t423-427 057. (MM 11:8)
1. Naucbme-isdedovatellskiy institut restuaroy promVehlenhosti I
Xhimichaskiy fakalltat Koskovskogo ordoua lenim t ordena Trd&ffoCo
Kramnogo 2namni gosudaretvannogo universitets, in. N.V. Iamonosava;
(Rubber-- Spect; ra) (Oxidation)

a~Ml

% 5,4

LYUBCHANSKATA, L.I.; SHLYAKHHkN, A.A.; UZIMINSP.Te-A.S.
Apparatus for testing axial compression stroun rolaxation of elastic
materials. Kaueb. i res. 16 n0.2:31-33 IF 157. (MIRA 120)
1. Nanchno-ineledovatellskiy institut resinovoy proryahlonnostit
(Rubber, Testing)

KMIKINSKIY, A.B.; BASS. 8.1.
Ninth conferende on general problems relative to the chemical
and physical properties of high molecular weight compounds.
IrauchA res. 16 no.4;37-4 AP 157. (KLRA 10:7)
(Nacromolecular compounds)

KUZIMINSKIY. A.S.; NIKITIIIA, T.S.; TSITLIN. B.L.
Zffect of ionizing radiation on rubbers and 7ulcanlzates. Kauch.
i rez. 16 no.6tl2-18 Je '57. (MIRA 10:10)
l.Mauchno-iseledovatellskiy inatitut r621novoy promyshlennoati.
(Rubber) (Radiation) (Vulcanization)
4a'~-,~~ ~rUA~-,

-T- -- _-I- -, I -: I " ---- - - ---- -- - - --- - ---- -
KUZIMINSKIT, A.S.
Scientific research in the physics and chemistry of crude and
vulcanized rubber during the last forty years. Kauch. i res.
16 no-10132-44 0 157. (MM 11:1)
(Rubber research)

.. ~ I.. - I I ~- ,wftX,'."tul dcvl? ~IUVLUE= -~'Ul -- - ,

20-41;-3-37/60
AUTHORSi Postovskayal A. F., Salimov, U. A., Kuziminakiy, A.S.
TITLEs On the Changes in the Degree of Sulphidity of Sulphur Strue-
turea in Vulcanized Products When Exposed to Light (Ob
izmenenii stepeni sullfidnosti sernykb atruktur v vulkanizatakh
pri xYetoY=vozdejvatvii)
PERIODICAM Doklady Akademii Nauk SSSR,1957,Vol,,;114,Nr 3,m-~586-589(USSR)
ABSTRAM The authors of the paper under review have demonstrated in
an earlier paper that sulphur vulcanized proddets of sodium
butadiene rubber (polyoulphide and thiuram products) dif-
foring from each other by the structure of their trMSTOrse-
b6nft , are of different stability to light. The polysulphide
vulcanized product is more stable. If it is exposed to ultra-
violet light this exposure is accompanied by the decomposition
of the sulphur compounds and by the form tion of free sulphur
whiohg unlike dwmtel.,, sulphurp does not take part in the
processes of photovulcanizationg i.e. remains "inactive". It
was not determined of what kind the structure of this inactive
sulphur is, neither was the question clarified just how the
Card 1/4 degree of sulphidity of sulphur in these vulcanized products
4,
7

20.U4-~_37/60
On the Changes in the Degree of Sulphidity of Sulphur Structures in Vulcan-
ized Products When Exposed to Light
changes when exposed to light. Therefore it is not possible
to give an answer to the very important question o:r V1W one
vulcanized product should be more resistant to light than
another. The paper under review in devoted to the inveati-
gation of this question. Research as to the type of
sulphur compounds is hindered by different obstacles. For
inatt,nool it is possible that polyoulphido structures had
been overlooked in tha 'thiurem vulcanized product. Be-
cause of several reasons, ultraviolet spectroscopy was applied
to the investigation of the change in the degree of sulphi-
dity of sulphur structures of both kinds of vulcanized pro-
ducts %Yhen exposed to ultraviolet light. The results of this
investigation are compiled in tables Nr I - 3 in the paper
under review, Figure Hr 1 shows that, if compared to pure
rubber, the absorption in polysulphide vAlcanized rubber is
intensified in the interval of 2200 - 5400 R. This can be ex-
plained by the existence of sulphur structures of different
degrees of sulphidity. If polysulphide vulcanized rubber is
expoijed to light, the'intensity of the absorption is reduced.
Card 2/4 This is explained by the decomposition of polyoulphide bonds,

9041"37/6D
On the Changes in the Degree of Sulphidity of Sulphur Structures iqYulcan-
ized Products When Exposed to Light
with the sulphide of higher order having a higher stability
to light. Figure Nr 2 shows for thiurem vulcaniw d rubber
a maximum of absorption in the interval between 2500 and 2600
correspondin,; to the presence of di- and trisulphides. Higher
sulphides are present in smaller quantities. Exposure to
light of tIdW= vulcanized rubber is accompanied by the
decomposition mainly of the hexa-sulphides and of the still
higher sulphides. Comparing figure Mr 1 and ITr 2, as contained
in the paper under review, it is seen that thiuram 'rul-
oanized rubbert in spite of the fact that its contents of
bound sulphur are only 1/4 of the contents in polysulphide
vulcanized rubbert shows more intense absorption in the -altra-
violet and in the visible range. This is probably caused by
the different distribution of the bound sulphur upon the
different sulphur structure. Analysis of the material obtaia-
ed from these experiments leads to the conclusion that the
higher stability to light of the polysulphide vulcanized rub-
ber as compared to the vulcanizsd rubber must be explained
Card 3/4 by the difference in the absorption in the ultraviolet range

2D-114-3-3T/60
On'the Ohange in the Degree of Sulphidity of Sulphur Strtr tures in Vulcan-
ized Produate When Exposed to Light
and by the relevant sulphur structures. There are 3 figures
and 12 referenoest 4 of which are 80viet-.
ASSOCIATIONi Scientific Research Institute of Rubber Industry
(Nachno-iosledovatellskiy inatitut rezinovoy promyehlennosti)
Moscow State Univereity imeni IA. V. Lomonosov
(Moskovskiy gosudarstvennyy universitet Im. M. V. Lomonooova)
PRESFMEDs November 22, 1956J by P. A. Rebinder, Member of the Academy
SUBMITTEDs November 22, 1956
AVAILABLEs Library of Congress
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nt ?_ , /0 / /V S ~' /
AUTHOR
TI T _LE
PERIODICAL
ABSTRACT
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DEGMAIT.G. and KUZIMINSKIY A.S. 20-2-40/62
Inf luence of the-ii`-~~~oiyenta on til,
Oxidation of Rubber in Solutions.
(VliyanJye khimioheskoy prirody rastvoriteley na
okisleal" kauchuks Y rantyarakh.- Russian)
Doklady Akadenii Nauk SSSR 1957, Vol 115, Nr 2,
pp 339-342
Many research workers use rubber solutions in the
modelling of oxidation processes which take plaos in
rubber in.s. solid. state. Chief attention is in this
connection paid to the transformation of the polymer*
themselves. As far an the r6lyent is concerned (foot-
note: under that have to b: understood low-molecular
rubber - dissolving hydrooarbona), its. parts in the
oxidati of rubber solutions is not at all discussed.
The pa:&..Ipation of the solvent in the mentioned
processj~'fioweverj becomes obvious from the generally
accepted radical chain mechaniss of the oxidation of
hydrocarbons. The object of the present investigation
was a study of the influence of the chemical nature of
the solvent, as may be seen from the title. Purified
sodium-butadione rubber dissolved in aromatic, naphthene-
and naphthenearomatio hydrocarbons was investigated.

2c,---40/62
1 af luence of. the Chemical Nstu-na of SolTt=ts v" the
Oxidation of Rubber in Solutions.
CARD 2/4
These latter had a varied oxidation reactivitym I special
apparatus was constructed for tht oxidation of solutions
and solvents, in order to abolish diffusion inhibitions
of oxygen. The kinetic oxidation curves recorded in
i11.1 explain the oxidation speed of 1% rubber solutions.
It increases in the series: toluol /_ xylol /, deoalin
(ethylbenseas