Solvent-free fabrication of proton-conducting membranes based on commercial elastomers

被引:9
作者
He, Shaojian [1 ]
Lin, Yankai [1 ]
Wei, Zheng [2 ]
Zhang, Liqun [2 ]
Lin, Jun [1 ]
Nazarenko, Seigei [3 ]
机构
[1] North China Elect Power Univ, Sch Renewable Energy, Beijing 102206, Peoples R China
[2] Beijing Univ Chem Technol, Key Lab Nanomat, Minist Educ, Beijing, Peoples R China
[3] Univ So Mississippi, Sch Polymers & High Performance Mat, Hattiesburg, MS 39406 USA
基金
中国国家自然科学基金;
关键词
proton exchange membrane; elastomer; solvent-free; in situ reaction; METHANOL FUEL-CELLS; POLYSTYRENE-BUTADIENE RUBBER; CHLOROSULFONIC ACID; EXCHANGE MEMBRANES; SYSTEMS; SULFONATION; POLYMERS; BLENDS; NAFION; SPEEK;
D O I
10.1002/pat.3443
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Five different types of elastomers were examined as the matrix materials in the preparation of non-fluorinated proton exchange membranes utilizing a solvent-free route via the in situ reaction of sodium 4-styrenesulfonate (NaSS). The morphology of the elastomer/NaSS vulcanizates was studied to evaluate the effect of polarity, viscosity and saturation degree of the elastomer matrixes. Much better dispersion of NaSS was found in chlorosulfonated polyethylene rubber (CSM) and hydrogenated nitrile butadiene rubber (HNBR) matrixes than in the other three types of elastomer matrixes. For CSM/NaSS and HNBR/NaSS proton exchange membranes, distinctive membrane properties were observed and correlated with their different structure and morphologies. The CSM/NaSS membranes exhibited the proton conductivity as high as similar to 0.03Scm(-1) and the selectivity (the ratio of proton conductivity to methanol permeability) higher than that of Nafion. Copyright (c) 2015 John Wiley & Sons, Ltd.
引用
收藏
页码:300 / 307
页数:8
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