Changes of polymer morphology caused by uv irradiation .2. Surface destruction of polymer blends

被引：17
|
作者：
Kaczmarek, H
机构：
[1] Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń
来源：
POLYMER | 1996年 / 37卷 / 04期
关键词：
polymer blends; uv irradiation; morphology;
D O I：
10.1016/0032-3861(96)83140-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The morphology of poly(methyl methacrylate)/polystyrene and poly(vinyl acetate)/polystyrene blends with different compositions was investigated by scanning electron microscopy. The multiphase structure and surface damage of blends caused by highly energetic, polychromatic u.v. irradiation is presented. It was found that photodegradation of polymer blends was initiated at the phase boundary or in the phase of the less stable polymer. The changes which occur in interfacial interactions, probably caused by the formation of polar groups during photo-oxidation, are discussed.
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页码：547 / 553
页数：7
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