PHOTODEGRADATION OF POLYIMIDES .1. A SPECTRAL, VISCOMETRIC, CHROMATOGRAPHIC, AND WEIGHT-LOSS INVESTIGATION OF POLYIMIDES BASED ON A HEXAFLUORINATED DIANHYDRIDE

被引：29

作者：

HOYLE, CE

ANZURES, ET

机构：

[1] Department of Polymer Science, University of Southern Mississippi, Hattiesburg, Mississippi

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 43卷 / 01期

关键词：

D O I：

10.1002/app.1991.070430101

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 photodegradation of aromatic-dianhydride-based polyimide films in air with hexafluorinated groups in the dianhydride moiety is characterized by significant weight loss and chain cleavage. A conventional polyimide film based on pyromellitic dianhydride yields little decomposition under similar conditions of photolysis. Emission changes on photolysis of polyimide solutions demonstrate an efficient rearrangement to yield a highly fluorescent species which can be used as an effective tool for following the degradation process.

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页码：1 / 10

页数：10

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