含异丙基和联苯结构可溶性聚酰胺的合成与表征

发布时间：2018-04-29 19:49

  本文选题：聚酰胺 + 可溶性　； 参考：《高分子材料科学与工程》2017年09期

【摘要】：一种新型含异丙基和大侧基联苯结构二胺单体3,3'-二异丙基-4,4'-二氨基苯基-4″-苯基甲苯(PAPT),与3种二酐通过Yamazaki膦酰化法缩聚制得3种聚芳酰胺薄膜。研究表明,聚合物具有良好的溶解性能,常温下能溶于N-甲基吡咯烷酮(NMP)、N,N-二甲基甲酰胺(DMF)、二甲基亚砜(DMSO)、N,N-二甲基乙酰胺(DMAc)等溶剂;具有突出的热性能,玻璃化转变温度均高于209℃,氮气氛围下10%热失重温度高于465℃;光学性能优良,截止波长范围在317~338nm,透过率超过80%的波长都大于445 nm。
[Abstract]:A new type of diamine monomer containing isopropyl and large side biphenyls was synthesized by condensation of three kinds of polyarylamides with three dianhydride by Yamazaki phosphonylation. The results show that the polymers have good solubility and can be dissolved in NMPN (NMPN) N (N) dimethylformamide (DMF), dimethyl sulfoxide (DMSO) (N) N (N) -dimethyl acetamide (DMAC) and other solvents at room temperature, and have outstanding thermal properties, such as N- (N-dimethylacetamide), dimethyl sulfoxide (DMSO), dimethylacetamide (DMAc), and so on. The glass transition temperature is higher than 209 鈩，

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