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个人信息Personal Information
研究员
博士生导师
硕士生导师
任职 : 高分子材料系副系主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：高分子材料. 高分子化学与物理. 功能材料化学与化工
办公地点：大连理工大学西部校区化工实验楼A407室
联系方式：Tel.: 0411-84986191
电子邮箱：liuch1115@dlut.edu.cn
Novel cross-linked membranes based on polybenzoxazine and polybenzimidazole containing 4-phenyl phthalazinone moiety for high-temperature proton exchange membrane
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论文类型：期刊论文
发表时间：2017-01-12
发表刊物：JOURNAL OF POLYMER RESEARCH
收录刊物：SCIE、EI
卷号：24
期号：2
ISSN号：1022-9760
关键字：Polybenzoxazine; Polybenzimidazole; 4-Phenyl phthalazinone moiety
摘要：Here, we report a series of novel PA-doped cross-linked benzoxazine-polybenzimidazole copolymer membranes. These membranes were obtained by mixing PBI containing 4-phenyl phthalazinone moieties (PPBI) and 4-phenyl phthalazinone-based benzoxazine (Bp) in N-methyl pyrrolidone (NMP), followed by heating to 260 A degrees C. The cross-linking reaction was determined by DSC and gel fraction tests. These copolymer membranes showed excellent comprehensive properties, with high proton conductivity up to 14.7 mS/cm at 160 A degrees C under anhydrous conditions. Besides, the P(PBp-co-PPBI)-30 membrane exhibited excellent mechanical property (approximately 50% improvement in tensile modules and strength compared to the pristine PPBI) and oxidative stability in Fenton's test (remaining intact after 226 h). This study proved that using benzoxazine as a cross-linking agent is a promising method for improving the properties of proton exchange membranes (PEMs).