磺化含侧苯基杂萘联苯聚醚砜质子交换膜材料的合成与性能  

Synthesis and properties of sulfonated poly (phthalazinone ether sulfone) containing pendant phenyl groups as proton exchange membrane materials

作　　者：张守海[1] 赵文颖[1] 陈丽云[1] 蹇锡高[1] 

机构地区：[1]大连理工大学化工学院,辽宁省高性能树脂工程技术研究中心,辽宁省高分子科学与工程重点实验室,辽宁大连116024

出　　处：《功能材料》2013年第18期2633-2637,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20776025)

摘　　要：以4-(3-苯基-4-羟基苯基)-2,3-二氮杂萘-1-酮、4-(4-羟基苯基)-2,3-二氮杂萘-1-酮和4,4’-二氯二苯砜为单体,合成了一系列含侧苯基杂萘联苯聚醚砜,然后以浓硫酸为磺化剂,制备磺化含侧苯基杂萘联苯聚醚砜(SPPES-P)。采用FT-IR、1 H NMR对聚合物的结构进行了表征,表明磺酸基被成功地引入到聚合物侧链苯基上。采用溶液法制备了SPPES-P质子交换膜。考察了SPPES-P膜的吸水率、溶胀率、质子传导率,以及甲醇渗透性能和耐氧化性能,SPPES-P膜具有较好的阻醇性和耐氧化性能。A series of poly（phthalazinone ether sulFone） containing pendant phenyl groups （PPES-P） were synthesized from 4-（3-phenyl-4-hydroxyphenyl）-2,3-phthalazin-1-one, 4-（4-hydroxyphenyl）-2,3-phthalazin-1-one and 4,4＇-dichlorodiphenyl sulfone. Sulfonated poly （phthalazinone ether sulfone） containing pendant phenyl groups （SPPES-P） were prepared from PPES-P with concentrated sulfuric acid as the sulfonating agent. The ion exchange capacity（IEC） of SPPES-P was obtained by titration method and theoretical calculation. The chemical structure of PPES-P and SPPES-P were characterized with ^1H NMR and FT-IR. SPPES P proton exchange membranes with different IEC values were prepared. SPPES-P membranes exhibited moderate water uptake and low swelling. SPPES-P membranes showed high oxidative stability and low methanol permeability. The methanol permeability values of SPPES-P membranes ranged from 7.34 × 10^- 8cm^2/s to 1.2 × 10^- 7cm^2/s, which were much lower than that of Nafionll7 membrane （1.04× 10^- 6cm^2/s） under the same test condition. The proton conductivities of SPPES-P membranes increased with the increase of IEC and temperature. The proton conductivity of SPPES-P100 membrane reached 1.4× 10^-2 S/cm at 95℃.

关 键 词：磺化 杂萘联苯 聚醚砜 合成 质子交换膜 

分 类 号：O631[理学—高分子化学]