Sulfonated poly(arylene ether sulfone) functionalized polysilsesquioxane hybrid membranes with enhanced proton conductivity

被引：15
作者：
Mulcherjee, Rajdeep [1 ]
Mandal, Arun Kumar [1 ]
Banerjee, Susanta [1 ]
机构：
[1] Indian Inst Technol, Mat Sci Ctr, Kharagpur 721302, W Bengal, India
来源：
E-POLYMERS | 2020年 / 20卷 / 01期
关键词：
sulfonated silica; composite membrane; thermal stability; membrane morphology; proton conductivity; POLYMER ELECTROLYTE MEMBRANES; RANDOM STATISTICAL COPOLYMERS; EXCHANGE MEMBRANE; ACID GROUPS; FUEL-CELLS; KETONE) COPOLYMERS; COMPOSITE; NITRILE)S; MOIETY;
D O I：
10.1515/epoly-2020-0048
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Sulfopropylated polysilsesquioxane and -COOH containing fluorinated sulfonated poly(arylene ether sulfone) composite membranes (SPAES-SS-X) have been prepared via an in situ sol-gel reaction through the solution casting technique. The composite membranes showed excellent thermal and chemical stability, compared to the pristine SPAES membrane. The uniform dispersion of the sulfonated SiOPS nanoparticles on the polymer matrix was observed from the scanning electron microscope images. Atomic force microscopy and transmission electron microscopy images indicated significantly better phase-separated morphology and connectivity of the ionic domains of the composite membranes than the pristine SPAES membrane. The composite membranes showed considerable improvement in proton conductivity and oxidative stability than the pristine copolymer membrane under similar test conditions.
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收藏
页码：430 / 442
页数：13
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