SCIENTIFIC ABSTRACT GELLER, B. E. - GELLER, J. KN.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000514620018-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

,L 60894-65
ACCESSION MR: ARS018417 0
on the solvent. The flexibility of a chlorinated polyvinylchloride in dichloroeth-
ane Is considerably higher than in dimethy1formamide. In dimethylformamide the
"equilibrium" fiexibility increases in a series: polyacrylonitrile < chlorinated
pol3riinylchloride < polyvinylchloride. Constants K and K in the Kuhn-Mark equation
were determined for the investigated "polymer-solvent" systems. The "skeletal"
flextbility is often overlapped by the solvation processes which lead to an increase
of the rigidity of the macromolecules. The kinetic 'properties of individual dacro-
molecules are suppressed in concentrated solutions. The mobility of associatts of
macr4)molecules In this case is estimated from the magnitude of the acting volume., V9
is the equivalent magnitude characterizing the average statistical size of the fluc-
tuating formations in the solution. V grows with an increase in the concentration
of the polymer in the solution and wit� a lowering of the temperature; it decreases
with an increase of the Ghearing stress upon flow; in good solvents V 9 is less than
in poor solvents. ror rigid polymers V 9 is greater than for flexible ones. B.
Geller
SUB CODE: AIP oc ENCL: 00
Card. /2 ........

64
S t-ady i ng the Z,,.' F! D
r-,f
nc,,31ll3~-1'9 (MMA 18:8)

(A) L 5302-66
ACC, HR; AP502496i SOURCE COM UR/02d6/65/000/016/0021/0021
AUTHORS.- Belovas T. B.; Geller, B. E. Aj
ORG: none