SCIENTIFIC ABSTRACT TIKHOMIROV, B.I. - TIKHOMIROV, B.N.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001755530012-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 10
• Document Creation Date: November 2, 2016
• Document Release Date: March 14, 2001
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

32344
S11901621004100110051020
Crystallinity of hydrogenation B101/13110
structure comparable to that of polyethylene. The crystallization extent
increased with increasing saturation: 20% with a 70-5%, 6o% with a 6-5%
unsaturated compound. The macromolecules of PB therefore consist of
saturated and unsaturated links in random succession. The occurrence of
saturated links does not noticeably change the molecular cross section and
cohesion energy, but reduces the flexibility of chains, increases the
interaction of links, elevates the melting point (30-1100C), and supports
the regular packing of macromolecules in a three-dimensional lattice. The
spherolitic structure was studied under an MIr-6 (9P-6) polarization
microscope. 0.1% solutions of hydrogenated PB in xylene were evaporated
in vacuo, melted between the cover glasses at 1500C, and heated in a
thermostat at 60-1000C for 15-20 min. Spherolites were only observed at a
hydrogenation degree j*?-5006. The formation of spherolites with a
considerable content of unsaturated links may be explained by the packet
theory of polymer structure proposed by V. A. Kargin, A. I. Kitaygorodskiy'
G. L. Slonimskiy (Kolloidn. zh., 12, 131, 1957). There are 2 figures and
12 references: 6 Soviet and 6 non-Soviet. The three references to
English-language publications read as follows: C. B. Marvel et al., J.
Organ. Chem. , L6 9 838 P 1951 ; 3. L. Aggarwal, G. P. Tillej, J. Polymer Sci.,
Card 2/3

310 1
0/1 90/62/C'04/(;Cl /i,G5//02()
Crystallinity of hydrogenation ... B101/B110
ta~ 17, 1955; J, L. Matthews, H. S. Peiser, R. B. Richards, Acta
arystallogr., a, 85, 1949-
ASSOCIATION:
SUBMITTED:
Leningradskiy gosudarstvennyy uniyersitet (Leningrad 1;tatc.
University)
January 16, 1961
Card 3/3

TIKHOXIROV, B. 1.
C'c' A.
Dissertation defended for the degree of Candidate of Biological C ,y If C1.1 -Gl - :' A"-
Sciences at the Institiite of High-Molecular Compounds in 19624.
"Investigation of Hydrogenation of Polybutadienes and Properties of
Hydropolybutadtenes.0
Vest. Akad. Nauk SSSR. No. 4, Moscow, 1963, pages 119-145

I V 13-71 f 4
TEXT* A method.-of -determining the oontent -of 1#2-t 018- 4 and ran
in polybutadienes was developed,on the basis of papers by D. Moreo
Schmalz (Rubber Chem.
(Chem. and -Ind. 1- 41 t 758 1959) and W. Ximmer, E. 0.
j6 ). For sodium butadiene containing no cis-1,4
-,,,,,and Technol.9 33,,639t 1 0
links, and for its hydrogenation products dissolved in carbon disulfidej
th a absorption coefficient for 1,2 links at 911 em- was found to be 2e6.a
1.6 and for trans-lf4 linkslat 968 am 255 3-5 I/mole-cm. In the
96 am- absorption band the superposition by neighboring aboorption bands
-was taken into account. The content of 112 and-trans-1,4 links in poly-
,T'i::butadienes was- determined with the aid of these absorption cooffioienta.
-t of cis-1,4 links was'-caloulated from the difference between th
~V The conten
egree of insaturation determined b- the addition of bromo iodine and the
Cawd 1/2

_sliqq 00
163106YA 3/001/624
Determination of the... BIOI/B186
SUM of the 1g2 and trans-10 links.. There are 2 tables.
&SSOGIATIONt Leningt dskiy gosudarstvennyy universitet (Leningrad State
University)
J,
SUBMITTEDs
April 17#:196~1

1~~. Card 2/2
7

YAKUBCHIK, A.I.; -- TIKHOMIROV, B.I.; MIKHAYLOVA, L.N.
Chemical inhomogeneity of the heterogenous catalytic hydrogenation
products of sodium polybulladiene. Vysokom. soed. 7 no.9:
1562-1564 S 165. (MIRA 18:10)
1. Leningradskiy gosudarstfennyy universitet im. A.A. Zhdanova.

YAKUBCHIK, A.I.; TIMOMIROV, 13.1.; KLOPOTOVA, I.A.; ~I.I:~ , : %
Hydrogenation of' cis-1,4-polybutadiene ir th,~ pre-,ence ~.,!
catalynts. Dokl. AN SSSR 161 nn.6:1365-1367 Ap 165. ;a;")
1. Leningradskiy gosudarstvenriyy universitot im, A.A.Zhdan(Wa. Sill-,
mitted October 15, 1964.

LEQJWAv N,;I.; 6)aWV, B.I.; YAKUBCHIK, A.I.; li-inia. 4.'
IM
bUKHAYLOVA, L. N.
Determination of the microstructure of polybutadieneag Tysokom.ooed.
5 uo-3:305~-308 Mr 063. 1 (MIR& 16-.3)
1. IAningradskiy gosadarstvenrwy uni-ersitet,
(Butadieus po37m6rs)

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