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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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含氮杂环结构溶致液晶聚芳酰胺的合成和性能
Abstract:
？将二胺1,2-二氢-2-(4-氨基苯基)-4-[4-(4氨基苯氧基)-苯基]-二氮杂萘-1-酮和对苯二胺与对苯二甲酰氯进行低温溶液缩聚反应并改变两种二胺的比例,制备出一系列共聚酰胺树脂.结果表明,共聚酰胺树脂的特性粘度为1.76-3.29dl/g;随着主链中二氮杂萘酮结构比例的增加,聚合物的溶解性逐渐得到改善;该类聚合物具有较高的玻璃化转化温度(312～351℃);在氮气气氛中10%热失重温度为513～534℃;聚合物呈现无定型的状态,并且可以在浓硫酸、n-甲基吡咯烷酮/氯化锂、n,n-二甲基乙酰胺/氯化锂中呈现溶致液晶织构.
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