Preparation and characterization of proton exchange membranes from polystyrene grafted poly(vinylidene fluoride) powder

被引：0
|
作者：
LI Linfan~(1
机构：
来源：
Nuclear Science and Techniques | 2011年 / 22卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Proton exchange membrane; Pre-irradiation graft polymerization; Polystyrene; PVDF powder;
D O I：
10.13538/j.1001-8042/nst.22.160-164
中图分类号：
O572.341 [];
学科分类号：
摘要：
Proton exchange membranes(PEMs)were prepared in three steps:grafting of polystyrene onto PVDF powder using pre-irradiation graft polymerization technique,processing the grafted PVDF powder into membranes of around 50-μm thickness,and sulfonating them with cholorosulfonic acid to form poly(vinylidene fluoride)-g-poly(styrene sulfonic acid)membranes.Kinetics of the graft polymerization was studied.The existing of polystyrene side-chains in the grafted PVDF powders,and PSSA groups in PEMs,were proved by FT-IR.Properties of the PEMs,i.e.the ion exchange capacity,water uptake,proton conductivity,thermal property and oxidative stability, were characterized.Dependence of properties on the degree of grafting was investigated,too.
引用
收藏
页码：160 / 164
页数：5
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