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芳香族聚酰胺具有优良的机械和热性能,是近二十年来比较重视的研究领域。对于刚性链的芳香族聚酰胺,如聚对苯二甲酰对苯二胺(PPTA),它们只能溶解在硫酸一类的强极性溶剂里,因此进行了许多向分子链上引入取代侧基的改性研究,清造刚等将含卤素取代基的对苯二甲酸和一系列芳香族二胺进行均聚和共聚,改变了聚合物的熔点、结晶性和溶解性,本文报道由苯环上含氯原子的二胺和对苯二甲酰氯合成了含氯原子侧
Aromatic polyamides have excellent mechanical and thermal properties, which have attracted more attention in recent two decades. For a rigid chain of aramid, such as polyparaphenylene terephthalamide (PPTA), which can only be dissolved in a strong polar solvent such as sulfuric acid, so a lot to the molecular chain to introduce substitution side Modification of the base, such as the Qinggao just just halogenated substituents of terephthalic acid and a series of aromatic diamines homopolymerization and copolymerization, changing the melting point of the polymer, crystallinity and solubility, reported here by the benzene ring The chlorine atom-containing diamine and the terephthaloyl chloride are synthesized on the chlorine atom-containing side