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Stabilization effect of pressure on free radicals in irradiated polyacrylonitrile
Author(s) -
Szőcs F.,
Klimová M.
Publication year - 1976
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1976.070200820
Subject(s) - polyacrylonitrile , radical , irradiation , photochemistry , reaction rate constant , materials science , chemistry , polymer chemistry , kinetics , polymer , organic chemistry , nuclear physics , physics , quantum mechanics
The influence of temperature and pressure on the decay of free radicals in γ‐irradiated polyacrylonitrile (PAN) was studied by ESR method. The studies were carried out at temperatures between 90° and 160°C and pressures from 1 to 8000 atm. The rate constants and activation volumes for radical decay were determined. The stabilization effect of pressure on the decay of PAN radicals is discussed and compared with mechanical data.