高等学校化学学报2013，Vol.34Issue(1)：231-235,5.DOI:10.7503/cjcu20120313
PVA接枝离子液体聚合物电解质的制备及性能
Preparation and Properties of PVA-g-Ionic Liquid Polymer Electrolyte
摘要
Abstract
Polyvinyl alcohol-graft-N-vinylimidazole fluoroboric acid salt copolymer ( PVA-g-VyImBF4) was synthesized with main raw materials such as polyvinyl alcohol (PVA) , iV-vinylim-idazole( Vylm) and fluoroboric acid(HBF4). With phosphotungstic acid(PTA) and ionic liquid ( PEG400IMBF4) as materials of improving practicability, PVA-g-VyImBF4/PTA/PEG400IMBF4 polymer electrolyte composite membrane was prepared via solution casting method. The polymer structure was characterized by means of Fourser transform infrared spectroscopy(FTIR), differential scanning calorimetry ( DSC ) , thermogravimetric analysis (TGA) and scanning electron microscope (SEM). The electrochemical performance of polymer electrolyte membrane was studied by alternating current (AC) impedance and cyclic voltammetry. The results show that the conductivity of the polymer electrolyte membrane can get to 3. 267×l0-3 S/cm measured at room temperature and the electrochemical stability window can get to 4. 4 V when m (PVA-g-VyImBF4) : m(PTA) : m (PEG400IMBF4) is 4:2:1.8.关键词
PVA接枝共聚物/离子液体/N-乙烯基咪唑/磷钨酸/电导率Key words
PVA-g-copolymer/ Ionic liquid/ N-Vinylimidazole/ Phosphotungstic acid/ Conductivity分类
化学化工引用本文复制引用
蒋春花,王宏宇,齐力,高桂天..PVA接枝离子液体聚合物电解质的制备及性能[J].高等学校化学学报,2013,34(1):231-235,5.基金项目
国家"九七三"计划项目(批准号:2012CB932800,2011CB935702)资助. （批准号:2012CB932800,2011CB935702）
