RADIATION-INDUCED DIELECTRIC LOSS IN HYDROCARBON POLYMERS

被引：10

作者：

MOPSIK, FI

机构：

[1] U. S. Department of Commerce, National Institute of Standards and Technology, Gaithersburg, Maryland

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1993年 / 31卷 / 13期

关键词：

CONDUCTIVITY; DIELECTRIC LOSS; IRRADIATION; NEUTRONS; POLYMERIC RELAXATIONS; POLYMERS; RADIATION-INDUCED LOSS; REACTOR CABLES;

D O I：

10.1002/polb.1993.090311311

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 loss of several cables insulated with hydrocarbon polymers has been measured over the frequency range of 10(-3)-10(4) HZ at 50 degrees after being subjected to neutron doses of up to 65 Mrad. The loss data show that a new loss process appears upon irradiation and that the frequencies associated with this loss are not those that are characteristic of those found for the unirradiated polymeric relaxations, ruling out main-chain motions. This loss seems to be related to dose and is probably due to local dipoles that are formed by the irradiation. It is also shown that the dominant behavior is not due to simple ionic conductivity. (C) 1993 John Wiley & Sons, Inc.

引用

页码：1989 / 1993

页数：5