摘要
报道了一种新型磺化聚芳醚酮材料的合成方法,通过引入取代基对聚芳醚主链进行保护,用氯磺酸直接磺化方法在聚芳醚酮高分子侧基上引入磺酸功能基,实现了聚合物磺化结构的可控定位合成,得到了稳定性较好的磺化聚芳醚酮.通过核磁共振(NMR)、热重(TG)和凝胶渗透色谱(GPC)等分析方法对其结构及性能进行了表征.用溶液浇膜法制备了质子交换膜,考察了膜的各种性能,并与商用Nafion膜进行了比较,其导电性、热稳定性和吸水性远优于Nafion膜,抗氧化性、抗水解性和机械强度也达到了较高的指标.
A novel sulfonated poly （arylene ether ketone） was successfully synthesized by the sulfonation of the polymer with chlorosulfonic acid. It was confirmed by ^1 H NMR spectra that the sulfonic acid group had been introduced onto the para-position of the pendant phenyl rings. The sulfonated polymers are very soluble in DMSO and other organic solvents, and can be readily cast into tough and transparent film. The results show that the membrane derived from the as-prepared polymers exhibits higher water absorption, superior thermal stability and higher proton conductive property than Nation. The mechanical strength, oxidative stability and hydrolytic stability were tested and compared with those of Nation.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第6期1141-1144,共4页
Chemical Journal of Chinese Universities
基金
广东省粤港关键领域重点突破重大招标项目(批准号:2004A11004004)资助
关键词
质子交换膜
聚芳醚酮
质子电导率
燃料电池
Proton exchange membrane
Poly（arylene ether ketone）
Proton conductivity
Fuel cell
