Preparation and Properties of Hybrid Silane-crosslinked Sulfonated Poly(aryl ether ketone)s as Proton Exchange Membranes

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 937-944
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s40242-019-9066-9

摘要

A series of novel organic-inorganic hybrid proton-conducting electrolyte membranes with silane-crosslinked sulfonated poly(aryl ether ketone)(SC-SPAEK) networks was prepared via a simple procedure that includes solution casting and acid treatment.The organosilicon pendants of the silane-grafted SPAEK,which were expected to serve as coupling and crosslinking agents,were found to play a key role in the homogenous dispersion of inorganic particles and improved the performance of hybrid membranes.The hybrid membranes exhibited enhanced proton conductivity,and SC-SPAEK/TiO2-4 showed an extremely high proton conductivity of 0.1472 S/cm at 100 ℃.The crosslinked hybrid membranes also demonstrated good chemical resistance,oxidative stability,and mechanical properties.The crosslinked hybrid membranes with excellent comprehensive performance may be a promising material for proton exchange membrane fuel cells.