1-乙烯咪唑在室溫離子液體中之反向原子轉移自由基聚合

Reverse Atom Transfer Radical Polymerization of 1-Vinylimidazole in Room Temperature Ionic Liquids

本研究利用室溫離子液體為溶劑，以1-乙烯咪唑為反應單體進行反向原子轉移自由基聚合反應之研究。在室溫離子液體的合成上，以1-甲基咪唑為原料，經由烷基化與陰離子交換反應後，製備出5種室溫離子液體。接著以此室溫離子液體為溶劑，利用氯化銅(Ⅱ)為催化劑進行1-乙烯咪唑單體的反向原子轉移自由基聚合反應研究，由反應之結果顯示：聚合物分子量之分布範圍主要受到離子液體黏度的影響，而相同陰離子結構的離子液體其黏度越低，則反應後聚合物分子量之分布會越狹窄。

This research was about reverse atom transfer radical polymerization of 1-vinylimidazole in room temperature ionic liquids. Five room temperature ionic liquids were synthesized by using 1-methylimidazole as starting material, and CuCl2 was selected as catalyst in reverse atom transfer radical polymerization reaction of 1-vinylimidazole in the synthetic ionic liquids. The results revealed polydispersity was mainly influenced by ionic liquid's viscosity. By the way, with the same anion structure of ionic liquids, the lower viscosity of the solvents led to the narrower polydispersity of the polymers.