引用本文:
褚庆辉, 丁孟贤. 主链含有β-二酮结构聚酰亚胺的合成与表征[J]. 应用化学,
1999, 16(6): 29-32.
Citation: Chu Qinghui, Ding Mengxian. Synthesis of Polyimides with β-Diketone Units in Main Chain[J]. Chinese Journal of Applied Chemistry, 1999, 16(6): 29-32.
Citation: Chu Qinghui, Ding Mengxian. Synthesis of Polyimides with β-Diketone Units in Main Chain[J]. Chinese Journal of Applied Chemistry, 1999, 16(6): 29-32.
主链含有β-二酮结构聚酰亚胺的合成与表征
English
Synthesis of Polyimides with β-Diketone Units in Main Chain
Abstract:
A novel β-diketone diamine, 1-(4-aminophenyl)-3-(3-aminophenyl)-1, 3-propanedione (1) was prepared by reduction of the corresponding dinitro compound with hydrogen over 10% Pd/C.Five polyimides containing β-dike-tone units in main chain were prepared from the β-diketone diamine and aromatic dianhydrides.The intermediate poly(amic acid)s(3) had inherent viscosities of 0.31-1.00dL/g.The polyimides obtained had glass-transition temperatures between 296℃ and 304℃ (by DSC) and 10% weight loss temperatures above 428℃ in both air and nitrogen atmospheres.
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Key words:
- polyimide
- / β-diketone
- / synthesis
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