Effect of ionic liquid segments of copolymer on compatibilization process and dielectric behavior of polylactide/polyvinylidene fluoride blends

Wang Ping; Cui Zhaopei; Hu Xianhai; Xu Pei; Ding Yunsheng

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Effect of ionic liquid segments of copolymer on compatibilization process and dielectric behavior of polylactide/polyvinylidene fluoride blends

机译：共聚物离子液体段对聚丙酯/聚偏二氟乙烯共混物的相容化工艺和介电行为的影响

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摘要

Biodegradable polylactide (PLA) and polyvinylidene fluoride (PVDF) blends containing the copolymer of PEGMA and 1-vinyl-3-ethylimidazolium bromide (PMI) were prepared, and the effects of ionic liquid segments of PMI on the compatibility of PLA and PVDF were investigated by dielectric relaxation spectroscopy (DRS). PMI can obviously improve the compatibility of PLA and PVDF, compared with the copolymer of PEGMA and vinyl imidazole (PMV). DRS showed that the compatibility of PLA and PVDF was related to the relaxation behavior of the blends, which was identified with Maxwell-Wagner-Sillars (MWS) interfacial polarization. The epsilon' of PLA/PVDF/PMI blends was much higher than that of PLA/PVDF/PMV blends in the same temperature, resulting from the stimulation of MWS interfacial polarization by the ion mobility of PMI.

机译：制备了可生物降解的聚乳酸（PLA）和聚偏氟乙烯（PVDF）共混物，其中含有PEGMA和1-乙烯基-3-乙基咪唑溴化物（PMI）的共聚物，并用介电弛豫光谱（DRS）研究了PMI的离子液体段对PLA和PVDF相容性的影响。与PEGMA和乙烯基咪唑（PMV）共聚物相比，PMI能明显改善PLA和PVDF的相容性。DRS表明，PLA和PVDF的相容性与共混物的弛豫行为有关，这与Maxwell-Wagner-Sillars（MWS）界面极化有关。在相同温度下，PLA/PVDF/PMI共混物的ε′远高于PLA/PVDF/PMV共混物，这是由于PMI的离子迁移率刺激了MWS界面极化。

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《Journal of Applied Polymer Science》 |2021年第4期|共7页
作者
Wang Ping; Cui Zhaopei; Hu Xianhai; Xu Pei; Ding Yunsheng;
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作者单位

Anhui Jianzhu Univ Sch Mat &

Chem Engn Hefei Peoples R China;

Hefei Univ Technol Sch Chem &

Chem Engn Hefei 230009 Peoples R China;

Anhui Jianzhu Univ Sch Mat &

Chem Engn Hefei Peoples R China;

Hefei Univ Technol Sch Chem &

Chem Engn Hefei 230009 Peoples R China;

Hefei Univ Technol Sch Chem &

Chem Engn Hefei 230009 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
dielectric properties; ionic liquids; morphology; structure-property relationships;

机译：介电性质;离子液体;形态;结构 - 财产关系;

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Effect of ionic liquid segments of copolymer on compatibilization process and dielectric behavior of polylactide/polyvinylidene fluoride blends

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