An EPR Study of Gamma-Irradiated Polyvinyl Alcohol

被引：2
|
作者：
Allayarov, S. R. [1 ]
Akimov, A. V. [1 ]
Dixon, D. A. [2 ]
Allayarova, U. Yu. [1 ]
Mishenko, D. V. [1 ]
Frolov, I. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia
[2] Univ Alabama, Dept Chem, Box 870336, Tuscaloosa, AL 35487 USA
来源：
HIGH ENERGY CHEMISTRY | 2021年 / 55卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
polyvinyl alcohol; gamma irradiation; paramagnetic centers; EPR spectroscopy;
D O I：
10.1134/S0018143921010033
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the course of gamma-irradiation at 77 K, polyvinyl alcohol accumulates alkyl radicals (formed upon hydrogen atom abstraction) and radical anions (resulting from electron addition to the acetate group remaining after the saponification of polyvinyl acetate in the course of polyvinyl alcohol production on its basis). Upon the radiolysis of polyvinyl alcohol at 300-341 K, polyenyl radicals with a singlet spectrum were detected in the EPR spectrum in addition to the triplet of alkyl radicals.
引用
收藏
页码：47 / 51
页数：5
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