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首页> 外文期刊>Polymers for advanced technologies >Aromatic poly(sulfone sulfide amide imide)s as new types of soluble thermally stable polymers
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Aromatic poly(sulfone sulfide amide imide)s as new types of soluble thermally stable polymers

机译：芳香族聚砜砜酰胺酰亚胺作为新型可溶性热稳定聚合物

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摘要

A new diamine monomer containing flexible sulfone, sulfide, and amide units was prepared via three steps. Nucleophilic chloro displacement reaction of 4-aminothiophenol with 4-nitrobenzoyl chloride in the presence of propylene oxide afforded N-(4-mercapto-phenyl)-4-nitrobenzamide and subsequent reduction of the nitro intermediate led to 4-amino-N-(4-mercapto-phenyl)benzamide. Two moles of this amino thiophenol compound was reacted with bis-(4-chloro phenyl)sulfone to provide a novel diamine monomer. The diamine was reacted with aromatic dianhydrides to form polyimides via a two-step polycondensation method, formation of poly(amic acid)s, followed by chemical imidization. The resulting polymers were characterized and their physical properties including thermal behavior, thermal stability, solubility and inherent viscosity were studied.
机译：通过三个步骤制备了一种新的含有柔性砜，硫化物和酰胺单元的二胺单体。在环氧丙烷存在下，4-氨基苯硫酚与4-硝基苯甲酰氯的亲核氯置换反应得到N-（4-巯基苯基）-4-硝基苯甲酰胺，随后硝基中间体的还原生成4-氨基-N-（4 -巯基苯基）苯甲酰胺。使两摩尔该氨基苯硫酚化合物与双-（4-氯苯基）砜反应以提供新型二胺单体。二胺通过两步缩聚方法与芳族二酐反应形成聚酰亚胺，形成聚酰胺酸，然后进行化学酰亚胺化。对所得聚合物进行了表征，并研究了其物理性能，包括热性能，热稳定性，溶解度和比浓对数粘度。

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