主链含吡啶环聚酰亚胺的合成方法

Review on synthesis methods of polyimides containing pyridine rings at main chains

芳香性的吡啶环兼备对称性、碱性和极性,将吡啶环引入到聚酰亚胺主链上可制备热稳定、力学性能和加工性能均优的聚酰亚胺。本文介绍了通过含吡啶环的二胺或者含吡啶环的二酐,利用"两步法",经由中间产物聚酰胺酸合成主链含吡啶环聚酰亚胺的方法,主要介绍了含吡啶环二胺和含吡啶环二酐的合成方法与途径。

With excellent thermal properties, mechanical properties and processabilities polyimides can be prepared by introducing pyridine-rings at polyimide main chains due to the combination of symmetry, basicity and polarity of aromatic pytidine tings. In this review, synthesis methods of polyimides containing pyridine rings at main chains via two-step method using pyridine-containing diamine or the pyridine-containing dianhydride are introduced, and the synthesis methods of pyridine-containing diamine or the pyridine-containing dianhydride are discussed.