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聚(芳基醚1,3,4-噁二唑)类聚合物的合成及表征 被引量：2

Synthesis and Characterization of Poly(Arylene Ether 1,3,4-Oxadiazole)s
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摘要 为改善芳香族聚噁二唑的加工性,合成了一种含噁二唑的双氟单体,将其与二酚单体进行溶液缩聚,得到一系列含有醚键与C(CH3)2,CCH3C6H5等官能团的新型聚(芳基醚1,3,4-噁二唑)(PEOD),其黏度达1.0 dL/g,噁二唑成环率达100%,并通过核磁氢谱(1H-NMR)和元素分析(EA)证实了其化学结构。通过热重分析(TGA)对PEOD的热稳定性进行了表征,结果表明,这些聚合物具有优良的热性能。通过溶解性试验表明PEOD能够溶解于三氯甲烷(CHCl3)、二氯甲烷(CH2Cl2)、四氢呋喃(THF)等有机溶剂,其溶解性比聚对苯撑噁二唑(p-POD)及对间苯噁二唑(p/m-POD)有了较大的改善。 To improve the processing properties of polyoxadiazole,we prepared a series of poly（arylene ether 1,3,4-oxadiazole）s（PEOD） with 100% cyclization degree,which contain ether,C（CH3）2 and CCH3C6H5 group,by using a new synthetic route from the perspective of molecular design.The structure and properties of polymers were further characterized by 1H nuclear magnetic resonance spectrum（1H-NMR）,element analysis（EA）,thermogravimetry analysis（TGA） and dissolvability experiment.The intrinsic viscosity of PEOD obtained is 1.0 dL/g.And these polymers show good solubility in chloroform（CHCl3）,dichloromethane（CH2Cl2）and tetrahydrofuran（THF）.PEOD is found to be amorphous,and has good thermal performance and solubility.
作者 马莹莹 杨潇 周万立 叶光斗 徐建军
机构地区 四川大学高分子科学与工程学院
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2011年第4期21-24,28,共5页 Polymer Materials Science & Engineering
基金 国家自然科学基金资助项目(50873061)
关键词 4 4′二氟-(2 5-二苯基)噁二唑 聚(芳基醚1 3 4-噁二唑) 溶解性 2 5-bis（4-fluorophenyl）-1 3 4-oxadiazle poly（arylene ether 1 3 4-oxadiazole）s dissolvability
分类号 TQ326.5 [化学工程—合成树脂塑料工业]
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参考文献10

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二级参考文献13

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高分子材料科学与工程
2011年 第4期

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