ESR investigations on ion beam irradiated polymers

被引：9

作者：

Chipara, MI

机构：

[1] Inst. Phys. Technol. Mat., Magurele, R-76900 Bucharest

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1997年 / 131卷 / 1-4期

关键词：

polymers; ion beam irradiation; electron spin resonance; latent tracks; degradation;

D O I：

10.1016/S0168-583X(97)00382-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Electron spin resonance investigations on ion beam irradiated polymers are reviewed from a critical point of view. The nature of free radicals produced by heavy ion bombardment is discussed in detail, in connection with the main hypotheses (thermal spikes and secondary electrons). ESR investigations on cellulose nitrate irradiated with accelerated oxygen ions are reported. From the temperature dependence of resonance line parameters, the presence of exchange interaction is noticed and the generation of free radicals at 200 degrees C is studied. (C) 1997 Elsevier Science B.V.

引用

页码：85 / 90

页数：6

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