梁勇芳,朱秀玲,潘海燕,张耀霞,张守海,蹇锡高.磺化聚芳醚腈砜酮热、氧化及水解稳定性能研究[J].,2008,(4):486-489 |
磺化聚芳醚腈砜酮热、氧化及水解稳定性能研究 |
Research on thermostability, oxidative and hydrolysis resistance for sulfonated poly (phthalazinone ether nitrile sulfone ketone) |
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DOI:10.7511/dllgxb200804004 |
中文关键词: 磺化聚芳醚 燃料电池 稳定性 质子交换膜 |
英文关键词: sulfonated poly(phthalazinone ether) fuel cell stability proton exchange membrane |
基金项目:国家自然科学基金资助项目(50373005);国家“八六三”计划资助项目(2003AA33G030). |
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中文摘要: |
将自制二氮杂萘酮类双酚(DHPZ),与自制的磺化4,4′-二氯二苯砜(SDCS)、商用2,6-二氯苯腈(DCBN)及4,4′-二氟二苯酮(DFK)进行高温缩合共聚合反应,合成了一系列磺化度可任意调控的新型磺化聚芳醚腈砜酮(SPPENSKs)共聚物.采用热失重分析仪(TGA)分析得到磺化度0.80的SPPENSK的5%热失重温度为455.0 ℃.把此系列聚合物溶解在N-甲基吡咯烷酮(NMP)中,刮制成膜,研究了SPPENSKs膜的热稳定性、水解稳定性、抗氧化等性质以及离子交换容量\%IEC\%等.研究结果表明新型磺化聚合物膜有良好的耐热稳定性、水解稳定性及抗氧化稳定性等.SPPENSK-80膜的\%IEC\%为1.32 mmol/g,高于Nafion1135的\%IEC\%(0.91 mmol/g). |
英文摘要: |
Sulfonated poly(phthalazinone ether nitrile sulfone ketone)s (SPPENSKs) with sulfonated groups prepared by direct polycondensation of sulfonated 4,4′-dichlorodiphenylsulfone(SDCS), 4,4′-difluorobenzophenone (DFK), 2,6-dichlorobenzonitrile (DCBN), 4-(4-hydroxyphenyl)-1(2H)- phthalazinone (DHPZ) at high temperature was utilized to investigate their physiochemical properties. The thermo-stability of SPPENSK-80 was detected by TGA. The 5% weight loss temperature is \{455.0\} ℃. The membranes of polymers were cast successfully using N-methylpyrrolidone as solvent. The hydrolysis resistance, oxidative resistance and \%IEC\% of the membranes were studied. The results indicate that membranes of SPPENSKs have good thermo-stability, hydrolysis resistance and oxidative resistance, etc.. The \%IEC\% of SPPENSK-80 is 1.32 mmol/g, which is higher than that of Nafion1135 \{(0.91\} mmol/g). |
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