Physical Aging and Refractive Index of Poly(methyl methacrylate) Glass

被引：0
|
作者：
Norihisa Tanio
Teruaki Nakanishi
机构：
[1] Faculty of Photonics Science and Technology,
[2] Chitose Institute of Science and Technology,undefined
来源：
Polymer Journal | 2006年 / 38卷
关键词：
Polymer Glass; Physical Aging; Refractive Index; Prism Coupling; Volume Relaxation; Glass Transition Temperature; Poly(methyl methacrylate);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Physical aging of poly(methyl methacrylate) (PMMA) glass was studied by refractive index measurement. We measured change of refractive index of PMMA glass with annealing at temperatures below the glass transition temperature (Tg) by optical prism coupling, and determined volume relaxation by physical aging using the Lorentz-Lorenz equation. In this paper, the effect of aging temperature on volume relaxation of PMMA glass was investigated. Maximum volume relaxation for PMMA glass was determined at 18 °C below the Tg.
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页码：814 / 818
页数：4
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