CAJ | 학술논문

以4,4′-二氟二苯砜、 4,4′-联苯二酚、 3,3′-二磺化-4,4′-二氟二苯砜二钠盐和三羟基苯为原料, 经高温溶液缩聚反应, 制备了一系列不同磺化度的新型交联磺化聚芳醚砜(CSPAES). 利用1H NMR和FTIR对聚合物结构进行表征. 采用溶液浇铸法制备了聚合物膜. 对膜的离子交换容量、吸水率、尺寸变化、机械性能和质子导电率进行了分析. 结果表明, 通过交联处理的磺化聚芳醚砜的水溶胀性明显降低, 当IEC为2.43时, CSPAES膜M(6/4-5)在水中的质子导电率达到260.5 mS/cm, 约为相同条件下Nafion112的2倍.
이4,4′-이불이분풍、 4,4′-련분이분、 3,3′-이광화-4,4′-이불이분풍이납염화삼간기분위원료, 경고온용액축취반응, 제비료일계렬불동광화도적신형교련광화취방미풍(CSPAES). 이용1H NMR화FTIR대취합물결구진행표정. 채용용액요주법제비료취합물막. 대막적리자교환용량、흡수솔、척촌변화、궤계성능화질자도전솔진행료분석. 결과표명, 통과교련처리적광화취방미풍적수용창성명현강저, 당IEC위2.43시, CSPAES막M(6/4-5)재수중적질자도전솔체도260.5 mS/cm, 약위상동조건하Nafion112적2배.
A series of crosslinked sulfonated poly(arylene ether sulfone)s were synthesized from 4,4'-diflu-orodiphenyl sulfone ( DFDPS ), 4,4'-biphenol(BP), 3,3'-disulfonate-4,4'-difluorodiphenyl sulfone (SDFDPS) and 1,3,5-trihydroxy benzene(THB) by nucleophilic substitution polycondensation reactions. The trifunctional crosslinker of THB was in the mass fraction range of 3%-1%. The structures of the polymers were confirmed by ~1H NMR and FTIR. The membranes were obtained by solution casting. The properties of the membranes including the ion exchange capacity(IEC),water uptake, diamensional change, mechanic property and proton conductivity were investigated. The results show that the water swelling is decreased after the cross-linking treatment. For the CSPAES membrane of M(6/4-6) , with IEC of 2.43 meq/q, it show proton conductivity of 260.5 mS/cm in water at 60 C, which is almost twice to that of Nafion 112.