摘要
通过对4,4’-双(N-甲基联苯酰亚胺)的单硝化反应、亲核取代反应、水解反应和闭环脱水反应,成功合成了2-邻甲基苯氧基4,4’,5,5’-联苯四甲酸二酐。将这种新型非对称酸酐与4,4’-二氨基二苯醚和对苯二胺进行高温聚合反应制得了非对称聚酰亚胺。聚酰亚胺的特性黏度分别为0.55dL/g和0.89dL/g,它们在有机溶剂中的溶解性能较好,同时具有优良的热稳定性和热氧稳定性。
By means of consecutive reactions in the 2 position of 4,4＇-bis（N-methylphthalimide）,2-o-methylphenoxy-4,4＇,5,5＇-biphenyltetracarboxylic dianhydride was successfully synthesised.The obtained asymmetric dianhydride was polymerized with 4,4＇-oxydianiline（ODA）and 1,4-phenylenediamine（PDA）via a high-temperature polycondensation procedure.The polyimides,with the inherent viscosities of 0.55 dL/g and 0.89 dL/g,possessed good solubility,excellent thermal stability and thermoxidative stability.
出处
《上海塑料》
2011年第1期35-40,共6页
Shanghai Plastics
关键词
聚酰亚胺
溶解性
热稳定性
热氧稳定性
polyimide
solubility
thermal stability
thermoxidative stability
