1-(Propyl amine)ethyl-3-methyl chloride ionic liquid ([N2C3MIM]Cl) was prepared on the base of N-methylimidazole by 1
2-dichloroethane to obtain the intermediates 1-chloro-ethyl-3-methyl chloride ionic liquid ([CeMIM]Cl)and then reacting with 1
3-propanediamine.The chemical structure of [N2C3MIM]Cl was confirmed by FT-IR and 1H NMR.[N2C3MIM]Cl possessed a lower REDOX potential (-0.522 V) through cyclic voltammetry measurement
[N2C3MIM]Cl presented a perfect coordination property compared with organic ligands.The obtained ionic liquid[N2C3MIM]Cl coordinated with CuBr was used to catalyze atom transfer radical polymerization (ATRP) of methyl methacrylate (MMA)and it indicated by gel permeation chromatography (GPC) that the coordination ionic liquid[N2C3MIM]Cl presented the perfect controllability to the ATRP reactions.The residues of Cu2+ in polymerization product PMMA was only 270 mg·kg-1 by atomic absorption spectrometry determination.It showed that[N2C3MIM]Cl was conducive to the separation of catalyst from the obtained product compared with the traditional organic ligands.