聚合物在咪唑类离子液体中的溶解

Solubility of Polymers in Imidazolium Ionic Liquids

离子液体(ILs)具有难挥发、热稳定、宽液程和高电导率等独特优点,在聚合物领域中的应用受到越来越多的关注。由于ILs内部的复杂相互作用力,ILs的溶剂化能力还不能像分子溶剂那样有定量的方法来表征,特别是ILs与聚合物的相容性没有一个统一的判据。本文从咪唑基ILs内部的四个主要相互作用力出发,简述了ILs内部的相互作用对不同类型聚合物在咪唑基ILs中溶解情况的影响,给读者一个初步的规律性认识。

Ionic liquids （ILs） have attracted considerable attention and are widely used in the field of polymer science because of their negligible volatility,thermal stability, non-flammability, and high ionic conductivity. There is no a common theory or method defining the solvation of ILs like that of molecular solvents because of the complexity of the interactions between anion and cation of ILs. The compatibility of polymer and ILs can not be easily characterized using commonly accepted parameters. In order to address some primary rules behind the solubility phenomenon of polymers in ILs, the effects of different interactions between anion and cation on the solubility of different kinds of polymers in imidazolium ILs were discussed based on four interactions.