Abstract

The interbicopolycondensation of 3,3'-bis(4-phenoxyphenyl)-3,3'-diphthalide and diphenyl oxide with intermonomer, 4,4'-bis(2-carboxybenzoyl)diphenyl oxide pseudoacid dichloride, proceeding by the Friedel–Crafts electrophilic substitution mechanism is used for the synthesis of a number of new diphenyl oxide copolyarylenephthalides with different ratios of phthalide and diphthalide groups in the polymer chain. It is shown that the ratio of diphthalide (meso and racemic) and common phthalide groups in the main chain significantly affects the morphological structure of the copolymers. A side “rephthalidation” reaction is found, which consists in the catalytic cleavage of the diphthalide group accompanied by the generation of two phthaloyl carbocations, which, along with the intermonomer, interact with diphenyl oxide, participating in the polymer-forming reaction.

中文翻译：

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邻苯二甲酸酯和邻苯二甲酸酯基团比例不同的二苯醚共聚亚芳基邻苯二甲酸酯

摘要

3,3'-双（4-苯氧基苯基）-3,3'-邻苯二甲酸酯和二苯醚与单体间4,4'-双（2-羧基苯甲酰基）二苯醚假酸二氯化物的双酚间缩合，由Friedel-Crafts亲电子试剂进行取代机理被用于合成许多在聚合物链中具有不同比率的邻苯二甲酸酯和二邻苯二甲酸酯的新型二苯醚共聚亚芳基邻苯二甲酰亚胺。结果表明，主链中邻苯二甲酸酯（间苯二甲酸酯和外消旋）与常见邻苯二甲酸酯基团的比率会显着影响共聚物的形态结构。发现了副“再酞酸酯化”反应，该反应包括对苯二甲酸酯基团的催化裂解，并伴随着两​​个邻苯二甲酰碳正离子的生成，这些邻苯二甲酰碳正离子与中间单体一起与二苯醚相互作用，