A new positive‐type photoreactive polyimide precursor using 1,4‐dihydropyridine derivative
A new positive‐type photoreactive polyimide precursor using 1,4‐dihydropyridine derivative
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使用1,4-二氢吡啶衍生物的新型正型光反应聚酰亚胺前体
DOI：
10.1002/pen.760322117
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发表时间：
1992
影响因子：
3.2
通讯作者：
T. Yamaoka
中科院分区：
文献类型：
--
作者：
Toshihiko Omote;T. Yamaoka
研制了一种新型正性聚酰亚胺前驱体（BPDA/DDE）。它是基于1，4-二氢-2，6-二甲基-4-（2-硝基苯基）-3，5-吡啶甲酸二甲酯（硝苯地平）组成的体系，由联苯四甲酸二酐和4，4 '-二氨基二苯醚缩聚而成。硝苯地平在聚酰亚胺前体膜中定量地光转化为4-（2 '-亚硝基苯基）-2，3-二羧甲基-3，5-二甲基吡啶（NDMPy）。结果表明，硝苯地平和NDMPy在涂膜剂中分别起溶出抑制剂和溶出促进剂的作用
A novel positive-type polyimide precursor (BPDA/DDE) has been developed and examined. It is synthesized by the polycondensation of biphenyltetracarboxylic acid dianhydride and 4,4'-diamino-diphenyl ether, based on systems composed of dimethyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridinecarboxylate (nifedipine). Nifedipine photoconverted quantitatively to 4-(2'-nitrosophenyl)-2,3-dicarboxymethyl-3,5-dimethylpyridine (NDMPy) in a polyimide precursor film. It has been confirmed that nifedipine and NDMPy in the film act as a dissolution inhibitor and as a disolution promotor, respectively