化工进展Issue(8)：2117-2122,6.DOI:10.3969/j.issn.1000-6613.2014.08.029
热致相分离法制备聚（偏氟乙烯-六氟丙烯）/离子液体凝胶膜及气体渗透性能
Preparation of p(VDF-HFP)/IL gel membranes by thermally induced phase separation and gas permeation performances
摘要
Abstract
p(VDF-HFP)/[BMIM]PF6 gel membranes were prepared by thermally induced phase separation (TIPS) process. The Internal structure and mechanical properties of the gel membranes were characterized. The effects of the [BMIM]PF6 contents on gas permeation performances of the gel membranes were discussed. The results showed a gradual decrease of the gel temperature and the dense polymer backbone structure of gel membrane into loose spherulitic structure with increasing [BMIM]PF6 content. Meanwhile,the presence of the [BMIM]PF6 reduced the overall crystallinity, improving the flexibility of p(VDF-HFP) segment,thereby CO2 and N2 permeability coefficient of the gel membranes significantly increased,whereas the permeability selectivity of CO2/N2 showed an initial increase and then a gradual decrease. When the [BMIM]PF6 content increased from 0 to 60%(wt),the CO2 permeability coefficient improved from 0.2Barrer to 94.3 Barrer. .关键词
热致相分离法/聚偏氟乙烯-六氟丙烯/离子液体/凝胶膜/气体渗透性能Key words
thermally induced phase separation/p(VDF-HFP)/ionic liquid/gel membranes/gas permeation performances分类
化学化工引用本文复制引用
张春芳,张倩,白云翔,顾瑾,孙余凭..热致相分离法制备聚（偏氟乙烯-六氟丙烯）/离子液体凝胶膜及气体渗透性能[J].化工进展,2014,(8):2117-2122,6.基金项目
国家自然科学青年基金（21106053）及江苏省产学研前瞻性联合研究项目（BY2013015-06）。 （）
