文献类型：期刊文献

中文题名：高离子电导率及耐碱性聚三唑鎓盐薄膜的制备及性能

英文题名：Preparation and Properties of Poly(1,2,3-Triazolium)-Based Membranes with High Ionic Conductivity and Alkali-Resistant

作者：别如烨[1];李瑜婧[2];万里强[1];黄发荣[1];刘坐镇[3]

机构：[1]华东理工大学材料科学与学院特种功能高分子材料及相关技术教育部重点实验室,上海200237;[2]上海卫星装备研究所,上海201100;[3]华东理工大学华昌聚合物有限公司,上海200237

年份：2023

卷号：39

期号：5

起止页码：17

中文期刊名：高分子材料科学与工程

外文期刊名：Polymer Materials Science & Engineering

收录：CSTPCD;;EI(收录号：20233814769157);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：中央高校基本科研业务费专项资金(JKD01221701)。

语种：中文

中文关键词：聚三唑鎓盐薄膜;超支化;离子导电性;耐碱稳定性

外文关键词：poly(1,2,3-triazolium)-based membrane;hyperbranched;ionic conductivity;alkaline stability

摘要：1,2,3-三唑鎓离子因不含酸性质子,耐碱稳定性良好,使得聚三唑鎓离子液体在聚电解质碱性电池离子交换膜等领域具有较好的应用潜力。文中将三炔正丁基-1,3,5-均苯三甲酸酯(TRBB)和端炔基聚乙二醇(DPPEG)与联苯二苄叠氮(BAMBP),通过1,3-偶极环加成反应及N-烷基化和阴离子交换反应,制备了具有高离子电导率及良好耐碱稳定性的新型超支化型聚三唑鎓盐薄膜(TDB-PTAIM)。TDB-PTAIM玻璃化转变温度(Tg)为70.8~143.6℃,质量损失10%的温度(Td10)为295~315℃,30℃最高电导率可达2.92×10-5 S/cm,在已报道的聚三唑鎓盐离子液体中处于较高水平;同时,TDB-PTAIM表现出较好的耐碱稳定性,在80℃浓度为1 mol/L的NaOH溶液中浸泡24 h后,仍能保持良好的力学性能,拉伸强度为25.6~57.4 MPa,下降幅度为9%~41%,离子电导率下降幅度为14%~23%。TDB-PTAIM兼具较好的力学性能、较高的离子电导率和较好的耐碱性能,有望应用于碱性电池离子交换膜领域。
1,2,3-Triazolium ion has no acidic protons and good alkali resistance and stability,which makes 1,2,3-triazolium-based poly(ionic liquid)s have good application potential in the fields of polyelectrolyte alkaline battery ion exchange membrane and so on.In this paper,trialkyne n-butyl-1,3,5-tris-tricarboxylate(TRBB)and alkynyl-terminated polyethylene glycol(DPPEG)were synthesized with biphenyl dibenzyl azide(BAMBP)via 1,3-dipolar cycloaddition reaction and N-alkylation and anion exchange reaction,a new type of hyperbranched poly(1,2,3-triazolium)-based membrane with high ionic conductivity and good alkali resistance was prepared.The results show that the glass transition temperature(Tg)of the membranes is 70.8~143.6℃;the temperature(Td10)of 10%mass loss is 295~315℃;the highest electrical conductivity of the poly(1,2,3-triazolium)-based membrane at 30℃can reach 2.92×10-5 S/cm,which is at a higher level among the reported hyperbranched polytriazolium-based ionic liquids.The TDB-PTAIM show a good alkali resistance stability.After immersion in 1 mol/L NaOH solution at 80℃for 24 h,it still maintains good mechanical properties.The tensile strength is 25.6~57.4 MPa,decreased by 9~41%and the ionic conductivity is decreased by 14%~23%.The Td10 of the TDB-PTAIM with different ratios does not change significantly,and the glass transition temperature(Tg)gradually decreases with the increase of content of DPPEG.