Glass transition behavior of spin-coated thin films of a hydrophilic polymer on supported substrates

被引：0
作者：
Xiao-lin Lu
Yong-li Mi
机构：
[1] Southeast University,State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering
[2] Hong Kong University of Science and Technology,Department of Chemical and Biomolecular Engineering
来源：
Chinese Journal of Polymer Science | 2015年 / 33卷
关键词：
Thin film; Hydrophilic polymer; Ellipsometry;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using ellipsometry, it is found the glass transition temperature of the spin-coated polyacrylamide (PAL) thin films on the supported silicon (Si) substrates with an oxide layer decreases with decreasing the film thickness. But Tgs of the as-prepared thin films are much higher than that of the bulk sample. Such observations can be attributed to the combined result of the “surface effect” and increased hydrogen bonding interaction between PAL chains due to spin coating/thin film confinement.
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页码：607 / 612
页数：5
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