KINETICS OF FORMATION OF MACROMOLECULAR N ETWORK INDUCED BY THERMAL-TREATMENT OF POLYACRYLONITRILE

Authors
NOVIKOV SV KAZARIN LA ZANEGIN VD IVANOV MV GERASIMOV VI
Citation
Sv. Novikov et al., KINETICS OF FORMATION OF MACROMOLECULAR N ETWORK INDUCED BY THERMAL-TREATMENT OF POLYACRYLONITRILE, Vysokomolekularnye soedinenia. Seria A, 35(9), 1993, pp. 20001550-20001552
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
35
Issue
9
Year of publication
1993
Pages
20001550 - 20001552
Database
ISI
SICI code
0507-5475(1993)35:9<20001550:KOFOMN>2.0.ZU;2-X
Abstract
The kinetics of cross-linking of powderlike PAN (M(eta) = 6.0 x 10(5)) induced by thermal treatment at 120 - 190-degrees-C under atmospheric conditions was studied. The induction period of cross-linking was det ermined, activation energy of this reaction was estimated, and the tem perature-time interval providing thermal treatment of PAN without the formation of a marked fraction of cross-links was specified. Compariso n of the experimental evidence with the published data suggests that c ross-linking is likely to proceed due to the formation of nitrogen-imi ne bonds and carbonyl-containing products of polymer degradation.