Positron annihilation lifetime spectroscopy to probe free-volume effects in high-temperature polymers and composites

被引：0
|
作者：
Hill, AJ
机构：
来源：
HIGH-TEMPERATURE PROPERTIES AND APPLICATIONS OF POLYMERIC MATERIALS | 1995年 / 603卷
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中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Positron annihilation lifetime spectroscopy (PALS) as a probe of free volume in polymers and composites is reviewed. The effect of temperature on the free volume distribution and studies of the effects of thermal history on room temperature free volume and related mechanical, physical and diffusional properties are presented. The free volume related phenomena discussed include the glass transition, physical aging, gas permeability, and crosslink density.
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页码：63 / 80
页数：18
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