化工进展2012，Vol.31Issue(3)：612-616,621,6.
季铵化羟乙基纤维素/季铵化聚乙烯醇共混阴离子交换膜的制备与表征
Preparation and characterization of blend anion-exchange membrane from quarternized hydroxyethylcellulose/quaternized poly（vinyl alcohol）
摘要
Abstract
Anion exchange membrane is the key of alkaline direct methanol fuel cell（ADMFC）.A series of quarternized hydroxyethylcellulose（QHEC）and quaternized poly（vinyl alcohol）（QPVA） blend anion exchange membranes were produced by mixing QPVA and QHEC at different ratios,hot crosslinked and characterized.The morphology of the blend membranes showed that its structure was compact and uniform.TG-DSC showed that the blend membranes were stable below 300 ℃.The conductivity of the composite membrane increased with the content increasing of quaternized poly（vinyl alcohol）and temperature.It was between 2.0×10-2 s/cm and 7.8×10-2 s/cm.The QHEC membrane has good impediment effect to the methanol and the lowest methanol permeability of QHEC membrane was 2.49×10-6 cm2/s at 20 ℃.With the increase of QPVA contents,the methanol permeability of blend membranes would increase slightly.关键词
阴离子交换膜/聚乙烯醇/羟乙基纤维素/共混改性Key words
anion exchange membrane/poly（vinyl alcohol）（PVA）/hydroxyethylcellulose（HEC）/blend modification分类
化学化工引用本文复制引用
董锐,李远兵,张建勋,孙晓斌,马磊,许文..季铵化羟乙基纤维素/季铵化聚乙烯醇共混阴离子交换膜的制备与表征[J].化工进展,2012,31(3):612-616,621,6.基金项目
国家自然科学基金委主任基金项目 （）
