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Synthesis and characterization of novel poly(aryl ether)s containing naphthyl moieties
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作者 Lei Wang Guang Ming Zhu 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第8期965-968,共4页
Two poly(aryl ether)s containing naphthyl moieties were prepared from bis(3,5-dimethyl-4-hydroxyphenyl)naphthyl methane (monomer 1) via nucleophilic aromatic substitution polycondensation with bis(4-fluoropheny... Two poly(aryl ether)s containing naphthyl moieties were prepared from bis(3,5-dimethyl-4-hydroxyphenyl)naphthyl methane (monomer 1) via nucleophilic aromatic substitution polycondensation with bis(4-fluorophenyl) ketone and bis(4-fluorophenyl) sulfone. The structures of these polymers were confirmed by 1H NMR. The Mn values of the two polymers were 96,200 and 88,600, respectively. The polymers exhibited good thermal stabilities with 5% mass loss at T 〉 400 and high glass-transition temperature (Ts) of T 〉 250 ℃. Moreover, the resultant polymers were amorphous determined by wide angle X-ray diffraction (WAXD). ?2009 Lei Wang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All fights reserved. 展开更多
关键词 Poly(aryl ether)s naphthyl moieties Thermal properties Chemical synthesis
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磺酸基在侧链萘环上的磺化聚芳醚质子交换膜的制备与性能研究 被引量:17
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作者 陶丹 向雄志 王雷 《高分子学报》 SCIE CAS CSCD 北大核心 2014年第3期326-332,共7页
以β-萘甲醛和2,6-二甲基苯酚为原料,合成出一种新型双酚单体.以此双酚单体和二氟单体(4,4'-二氟二苯甲酮或4,4'-二氟二苯砜)为基础,通过亲核取代反应,制备出两种高分子量聚芳醚.用氯磺酸对聚合物进行磺化,得到了2种磺酸基在侧... 以β-萘甲醛和2,6-二甲基苯酚为原料,合成出一种新型双酚单体.以此双酚单体和二氟单体(4,4'-二氟二苯甲酮或4,4'-二氟二苯砜)为基础,通过亲核取代反应,制备出两种高分子量聚芳醚.用氯磺酸对聚合物进行磺化,得到了2种磺酸基在侧链萘环上的磺化聚芳醚.该磺化聚芳醚能溶于N,N-二甲基乙酰胺(DMAc)、N,N-二甲基甲酰胺(DMF)、二甲基亚砜(DMSO)等常见的有机溶剂,通过溶液浇注的方法制备出光滑、柔韧的膜.用红外光谱(FTIR),核磁共振谱(1H-NMR)表征了聚合物结构.用示差扫描量热仪(DSC),热重分析仪(TGA)研究了聚合物的耐热性能.结果表明,这些侧链磺化的质子交换膜具有高的电导率(4.2×10-2S/cm)、高的机械强度、低的溶胀率和较好的氧化稳定性. 展开更多
关键词 含萘双酚单体 磺化聚芳醚 质子交换膜 氧化稳定性
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