A kind of imidazolium salt type anion exchange membrane and a preparation method thereof, relates to an anion exchange membrane. A polymer film substrate, imidazolium salt anionic thermal stability and good chemical stability exchange membrane and preparation method thereof. The chemical structure of the polymer is one kind of side chain containing imidazolium salt ionic conductivity of membrane, the imidazolium salt type anion exchange membrane is greater than 0.01S / cm, has good thermal stability and chemical stability, can be in high temperature, strong acid, strong alkali and strong oxidant in use. The polymer film soaked in acetone cleaning after drying to constant weight; high energy radiation film; film irradiated into the container, into the monomer to the container, the vacuum membrane immersed in the monomer, and no air filled with inert gases to the container, the reaction sealed in a water bath to remove. The unreacted monomer, drying; will quaternized grafted film were soaked in deionized water, washing, to imidazolium salt anion exchange membrane.
【技术实现步骤摘要】
本专利技术涉及一种阴离子交换膜,尤其是涉及。
技术介绍
阴离子交换膜在水处理,物质的净化、浓缩、分离,氯碱工业,以及碱性阴离子交换膜燃料电池,液流储能电池,新型超级电容器等方面有着广泛的用途。阴离子交换膜由高分子基体、荷正电的活性基团和活性基团上可移动的阴离子组成。目前,已公开的强碱型阴离子交换膜一般为季铵盐型的聚合物,由于活性基团季铵盐的热稳定性较差,而且容易被氧化剂氧化降解,大大限制了其使用范围。中国专利200710072040. 7公开了一种改性阴离子交换膜及其制备方法,是将聚偏氟乙烯和增塑剂溶解于有机溶剂中,加入二氧化钛颗粒和成孔剂,超声分散,相转化成膜,然后将膜浸渍于氯甲醚中,在无水氯化锌的催化作用下发生氯甲基化反应,再用三甲胺溶液浸泡,得到季铵化的阴离子交换膜。中国专利200710132289. 2公开了一种有机-无机杂化阴离子交换膜的制备方法,是将苄基溴代度为65% 102%的苄基溴代聚苯醚先进行羟基化,随后进行季铵化, 最后按摩尔比以含有的苄基计算的季铵化产物溶液小分子烷氧基硅烷催化剂水= 1 0. 082 0. 73 0 0. 23 4. ...
【技术保护点】
1.一种咪唑嗡盐型阴离子交换膜,其特征在于其化学结构为一类侧链上含有咪唑嗡盐的高分子聚合物,其结构式如下:其中m为整数,m≥1;n为聚合度,n为整数;R为碳原子小于4的烷基或苯基;[X-]为一个与咪唑嗡基阳离子相配的阴离子,如0H-,Cl-或SO3H-。
【技术特征摘要】
【专利技术属性】
技术研发人员:方军,郑明森,董全峰,田昭武,卢晓焕,施一宁,林祖赓,
申请(专利权)人:厦门大学,
类型:发明
国别省市:92[]
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。