DIELECTRIC RELAXATIONS OF POLY(METHOXY-SUBSTITUTED PHENYL METHACRYLATE)S

被引:3
|
作者
KIHIRA, Y
SUGIYAMA, K
机构
[1] Kinki Univ, Kure, Jpn, Kinki Univ, Kure, Jpn
来源
关键词
MONOMERS - Polymerization - RELAXATION PROCESSES;
D O I
10.1080/00222348708248067
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The dielectric relaxation of poly(phenyl methacrylate) and two poly(methoxy-substituted phenyl methacrylate)s was studied over the frequency range from 30 Hz to 3 multiplied by 10**5 Hz and the temperature range from minus 100 degree C to 170 degree C. Each samples shows three relaxation processes, termed alpha , beta , and +65,within the temperature ranges 90 degree C to 130 degree C, 20 degree to 90 degree C and minus 60 degree to minus 20 degree C, respectively. The alpha and beta processes were attributed to the micro-Brownian motion of the main chain and the entire side chain, respectively.
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页码:227 / 236
页数:10
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