Accession Number : AD0704757

Title :   INVESTIGATION OF THE KINETICS OF THE -CN BOND TRANSFORMATION IN POLYACRYLONITRILE BY IR ABSORPTION SPECTRA,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kubasova,N. A. ; Kusakov,M. M. ; Shishkina,M. V.

Report Date : 23 MAR 1970

Pagination or Media Count : 9

Abstract : The CN group of polyacrylonitrile (I) during heating in vacuo is converted to a CN group, conjugated with a ladder polymer. The kinetics of CN group conversion were studied while heating I at 205-70C. IR spectroscopy was used to determine the concentration of the CN groups. From the plots of optical density at 2240/cm vs. time the decompn. rate (r) of I was determined. Plotting log r vs. 1/T (T is temp.) gave an estimate of the process activation energy (E). In the latter case besides the conjugation of I also its thermal decompn. takes place. (Author)

Descriptors :   (*NITRILES, *INFRARED SPECTRA), (*ACRYLONITRILE POLYMERS, INFRARED SPECTRA), DECOMPOSITION, REACTION KINETICS, HEAT OF ACTIVATION, USSR

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE