Preparation of a Proton-Exchange Membrane with -SO3H Group Based on Polyethylene and Poly(vinylidene fluoride) Film by Radiation-Induced Graft Polymerization for Proton-Exchange Fuel Cell

摘要

This paper reports the preparation of a proton-exchange membrane (PEM) with sulfonic acid (-SO3H) groups based on polyethylene (PE) films and poly(vinylidene fluoride) (PVdF) films by the radiation-induced graft polymerization (RIGP) of sodium styrene sulfonate (NaSS) in the presence of the polynnerizable access agents, such as acrylic acid and pyrollidone in a methanol solution. A PEM with -SO3H based on. PE and PVdF films were confirmed by ATR, XPS and contact angle measurements. The water uptake (%), graft yield (%), ion-exchange content (nnmol/g), and proton conductivity (S/cm), as well as the current density (mA/cm(2)), and power density (mW/cm) for PEM with -SO3H groups prepared by RIGP were evaluated. The PEM prepared with the SO3H groups based on PE and PVdF films can be used as a proton-exchange fuel cell membrane.