现代食品科技2013，Vol.29Issue(1)：81-87,7.
接枝法制备温度响应型PVDF-g-PNIPAM复合膜的研究
Thermo-sensitive PVDF-g-PNIPAM Membrane Preparation via Grafting Copolymerization Method
摘要
Abstract
Cany out the research of preparation process of temperature-responding polyvinylidene fluoride(PVDF) composite intelligent membrane by grafting copolymerization method. PNIPAM monomer is grafted onto the PVDF-based membrane by alkali modification method in order to prepare composite intelligent film that having temperature response characteristic. With the determination of the lower critical temperature (LCST), pure water flux, retention and other indicators, it figure out that how the different cross-linking concentration, the temperature of the cross-linking reaction, grafting rate influence the temperature response performance of membrane. And infrared spectral analysis results confirmed that thermo-sensitive group PNIPAM has been grafted onto PVDF membrane. Experimental results showed that the optimum technological conditions are: crosslinking agent (MBAA) concentration 0.02 mol/L, grafting rate 7%, cross-Unking reaction temperature 50 ℃-60℃. The results also showed that the compound membrane had good resistance to polluting and temperature response performance.关键词
温度响应/聚偏氟乙烯复合膜/接枝法/强碱改性Key words
thermo-responsive/composite polyvinylidene fluoride membrane/grafting copolymerization/alkaline modification引用本文复制引用
肖凯军,詹婷,陈仁菊..接枝法制备温度响应型PVDF-g-PNIPAM复合膜的研究[J].现代食品科技,2013,29(1):81-87,7.基金项目
国家自然科学基金项目(21176092) （21176092）
"十二五"国家科技支撑计划项目(2011BAE16B04) （2011BAE16B04）
广东省产学研项目(2010B090400512,20098090200020) （2010B090400512,20098090200020）
