化工进展2015，Vol.34Issue(12)：4285-4289,4294,6.DOI:10.16085/j.issn.1000-6613.2015.12.024
静电层层自组装改性SPPESK/PWA质子交换膜
Modification of SPPESK/PWA proton exchange membrane by layer-by-layer self-assembly
摘要
Abstract
The sulfonated poly(phthalazinone ether sulfone ketone)/phosphotungstic acid (SPPESK/ PWA) composite membrane prepared by the direct doping method has a problem of serious outflow, which affects the application of the membrane in fuel cells. To solve that,electrostatic layer-by-layer (LBL) self-assembly was employed to modify the SPPESK/PWA membrane using chitosan (CS) as the polycation and PWA as the polyanion. Properties such as water uptake,swelling ratio and proton conductivity were measured,and stability of PWA was analyzed meantime. It is shown that conductivity of the SPPESK/PWA/(CS/PWA)2membrane reaches 154mS/cm (80℃),higher than that of the SPPESK membrane (118mS/cm) and the SPPESK/PWA membrane (147mS/cm). In addition,for the SPPESK/PWA/(CS/PWA)4membrane,after soaked in 80℃ water for 30 days,weight loss ratio decreases from 18.45% to 11.81%,and conductivity loss ratio decreases from 32.20% to 16.77%. The results indicate that the LBL self-assembly method improves the proton conductivity and restricts the PWA loss.关键词
层层自组装/质子交换膜/磺化聚芳醚砜酮/壳聚糖/磷钨酸Key words
layer-by-layer self-assembly/proton exchange membrane/sulfonated poly(phthalazinone ether sulfone ketone)/chitosan/phosphotungstic acid分类
信息技术与安全科学引用本文复制引用
孙园园,吴雪梅,甄栋兴,张世凯,胡蒙蒙,贺高红..静电层层自组装改性SPPESK/PWA质子交换膜[J].化工进展,2015,34(12):4285-4289,4294,6.基金项目
国家杰出青年科学基金(21125628)、国家自然科学基金(21176044)及大连理工大学重大项目培育科研专题项目(DUT13ZD204). （21125628）
