期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 209, 期 8, 页码 810-817出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.200700534
关键词
confinement-effects; glass transition; metastable states; molecular dynamics; thin polymer films
The impact of the preparation and thermal films history on the dynamic glass transition in thin films of poly(methyl methacrylate) and poly(vinyl acetate) is systematically investigated means of broadband dielectric spectroscopy. Metastable states of glassy dynamics are detected, exhibiting shifts in the mean-relaxation time from the bulk values. These shifts - possibly mimicking confinement- effects in thin polymer films - become weaker (or even disappear) after an extensive annealing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据