SYNTHESIS AND CHARACTERISTICS OF ORGANIC SOLUBLE PHOTOACTIVE POLYIMIDES

被引:30
作者
HO, BC
LIN, YS
LEE, YD
机构
[1] NATL TSING HUA UNIV,DEPT CHEM ENGN,HSINCHU 30043,TAIWAN
[2] ITRI,UNION CHEM LABS,HSINCHU 300,TAIWAN
关键词
D O I
10.1002/app.1994.070531113
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Soluble aromatic polyimides with inherent viscosities of 0.23-0.50 dL/g have been synthesized from 2,2-bis(3-amino-4-hydroxyphenyl) hexafluoropropane (BAPAF) and various aromatic tetracarboxylic dianhydrides. Almost all polyimides were soluble in a wide range of organic solvents, i.e., acetone, m-cresol, N,N-dimethylacetamide, N,N-dimethylformamide, N,N-dimethylsulfoxide, N-methyl-2-pyrolidone, methyl ethyl ketone, and tetrahydrofuran (except that polyimide deriven from 3,3',4,4'-biphenyl tetracarboxylic dianhydride). Synthesized polyimides have a glass transition temperature in a range of 293 to 355-degrees-C, showing no appreciable weight loss up to 400-degrees-C in both air and nitrogen. These soluble polyimides exhibit high transparency in the UV visible region, with water absorption being between 3.6 to 5.7 wt %. They provide an aqueous base developable positive photoresist system when formulated with diazonaphthoquinone sensitizer. On the other hand, negative photoactive polyimides which are soluble in common organic solvents and optically transparent at a light of 365 nm wavelength, being obtained by reacting these soluble polyimides with methacryloyl chloride. Properties and characteristics of both positive and negative photoactive polyimides have been studied here. (C) 1994 John Wiley & Sons, Inc.
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页码:1513 / 1524
页数:12
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