一种杂环磺化聚芳醚腈酮质子交换膜材料的合成及表征  

SYNTHESIS AND CHARACTERIZATION OF SULFONATED POLY(PHTHALAZINONE ETHER NITRILE KETONE)S FOR PROTON EXCHANGE MEMBRANE

作　　者：王国庆[1] 朱秀玲[1] 张守海[1] 梁勇芳[1] 蹇锡高[1] 

机构地区：[1]大连理工大学高分子材料系,大连116012

出　　处：《高分子学报》2006年第2期209-212,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号50373005资助项目);国家"973"基础研究计划项目(项目号2003CB615700)

摘　　要：用含二氮杂萘酮结构类双酚DHPZ，3，3＇-二磺酸钠基-4，4’-二氟二苯酮，2，6-二氯苯腈以及4，4’-二氟二苯酮，通过缩合共聚合反应合成了一系列不同磺化度、高分子量的磺化聚芳醚腈酮．聚合物特性粘数为0．58～2．0dL／g．用红外光谱（FT-IR），核磁共振谱（^1H-NMR）表征了聚合物结构．用差示扫描量热仪（DSC）和热重分析仪（TGA）研究了聚合物的耐热性能，研究表明其玻璃化温度（Tg）可达352℃，5％热失重温度大于500℃．以N-甲基吡咯烷酮为溶剂，溶液浇铸法制备了聚合物膜，并测定了膜的溶胀率以及质子交换能力．结果表明，与Nation膜相比，磺化聚芳醚腈酮膜在相同的质子交换能力条件下，溶胀率显著降低．Sulfonated poly（phthalazinone ether nitrile ketone）s （SPPENK＇） with pendent sulfonate groups were synthesized by direct polycondensation from 4- （4-hydroxyphenyl）-1 （2H）-phthalazinone （DHPZ）, disodium 3,3＇- disulfonate-4, 4＇-difluorobenzophenone （SDFB）, 4, 4＇-difluorobenzophenone （DFB） and 2, 6-dieholobenzene （DCBN）. The intrinsic viscosity of SPPENK was in the range of 0.58 - 2.0 dL/g. FT-IR, ^1H-NMR and wide-X-ray scattering were used to characterize the structures of the eopolymers. The thermo-stability of the copolymers was detected by DSC and TGA. Tough films were cast successfully from N-methylpyrrolidone solutions. The ion exchange capacity （IEC） values were 0.91 - 2.06 meq· g^-1 . The swelling ratios of resulted membranes were 9% - 21%, which is much lower than those of Nafion1135 and other reported sulfonated poly（aryl ether ketone）s and poly（aryl ether sulfone）s membranes with the same ion exchange capacity.

关 键 词：二氮杂萘联苯酮 直接缩合聚合 聚芳醚腈酮 质子交换膜 磺化 

分 类 号：TB383.2[一般工业技术—材料科学与工程]