Depletion-induced nonbirefringent banding in thin isotactic polystyrene thin films

被引：91

作者：

Duan, YX

Jiang, Y

Jiang, SD

Li, L

Yan, SK

Schultz, JM ^{[1
]}

机构：

[1] Univ Delaware, Dept Chem Engn, Newark, DE 19716 USA

[2] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China

来源：

MACROMOLECULES | 2004年 / 37卷 / 24期

关键词：

D O I：

10.1021/ma0483165

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Depletion-induced nonbirefringent banding in thin isotactic polystyrene thin films was analyzed. Nonbirefringent ring banded structures were observed when two optical micrographs of iPS thin films melt was crystallized at 160°C for 6 hours. The banding was associated with the change of specific volume upon crystallization from the polymer melt. The periodic banding is a result of the inability of the diffusive process replenishing melt at the growth front to keep up with the crystal growth velocity.

引用

页码：9283 / 9286

页数：4

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