DIELECTRIC BEHAVIOR OF N-BUTYL ACRYLATE DURING POLYMERIZATION REACTION

被引：6
作者：
CARLINI, C
LIVI, A
ROLLA, PA
FIORETTO, D
机构：
[1] UNIV PISA,DIPARTIMENTO FIS,I-56100 PISA,ITALY
[2] UNIV BOLOGNA,DIPARTIMENTO CHIM IND & MAT,I-40136 BOLOGNA,ITALY
[3] UNIV PERUGIA,DIPARTIMENTO FIS,I-06100 PERUGIA,ITALY
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 172卷 / pt 1期
关键词：
D O I：
10.1016/0022-3093(94)90489-8
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The dielectric behavior of n-butyl acrylate undergoing a thermally initiated polymerization reaction was analyzed in the 0.1-10 GHz frequency interval by means of time domain reflectometry. The dielectric behavior of the system was modeled by a superposition of two main relaxation processes, related to monomer and polymer, respectively. The time evolution of the dielectric permittivity of the reacting system at different frequencies is discussed. It is shown that the change of the dielectric permittivity at about 10 GHz is mainly due to the disappearance of the monomer. The presence of a secondary relaxation in the polymer was detected at 160 K in the frequency domain (10(3)-10(7) Hz) by impedance spectroscopy.
引用
收藏
页码：569 / 574
页数：6
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