ESR STUDIES OF HEAT-TREATED METAL-CONTAIN ING POLYACRYLONITRILES

Authors
SOLODOVNIKOV SP BRONSHTEIN LM LOGINOVA TP MIRZOEVA EM LEPENDINA OL VALETSKII PM
Citation
Sp. Solodovnikov et al., ESR STUDIES OF HEAT-TREATED METAL-CONTAIN ING POLYACRYLONITRILES, Vysokomolekularnye soedinenia. Seria A, 35(1), 1993, pp. 20000026-20000029
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
35
Issue
1
Year of publication
1993
Pages
20000026 - 20000029
Database
ISI
SICI code
0507-5475(1993)35:1<20000026:ESOHMI>2.0.ZU;2-F
Abstract
Heat treated metal-containing polyacrylonitriles that were obtained in air (220-degrees, 13 h) and based on chrome-, molybdenum-, and tungst encarbonyl polyacrylonitriles, were investigated using the ESR method. As a result of heat treatment, oxides of corresponding metals and par amagnetic centers appeared, whose concentration was dependent on the d uration of heating. Subsequent carbonization (980-degrees, argon) led to the reduction of metal oxides and to the disappearance of paramagne tic centers.