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首页> 外文期刊>Polymer Composites >The surface modification by carboxyl ionic liquid for mesoporous silica and the preparation of composite polymer electrolyte with the modified mesoporous silica
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The surface modification by carboxyl ionic liquid for mesoporous silica and the preparation of composite polymer electrolyte with the modified mesoporous silica

机译：羧基离子液体用于中孔二氧化硅的表面改性及改性介孔二氧化硅的复合聚合物电解质的制备

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摘要

A modified mesoporous silica was prepared by esterification reaction of the hydroxyl group on the surface of mesoporous silica with 1-carboxymethyl-3-methyl imidazolium bis(trifluoromethylsulfonate)imine ([(HOOC)C(1)C(1)Im][NTf2]). The esterification reaction and structure of the modified mesoporous silica were investigated using the X-ray photoelectron spectroscopy, Nitrogen adsorption-desorption analysis, Transmission electronic microscopy, Field emission scanning electronic microscopy, Energy dispersive X-ray spectroscopy, and Thermogravimetric analysis.The analysis results indicated that the carboxyl group of [(HOOC) C1C1Im] [NTf2] can occur the catalytic esterification reaction with the hydroxyl group on the surface of mesoporous silica and the introduction of ILs did not affect the long range ordered pore structure of mesoporous silica, and the modified mesoporous silica contains 8.14% (wt.) of [(HOOC)C(1)C(1)Im][NTf2]. In addition, a composite polymer electrolyte (CPE) was prepared through introducing the modified mesoporous silica and bis (trifluoromethanesulfon) imide lithium salt (LiTFSI) into the carboxylate butadiene-acrylonitrile rubber (XNBR) matrix and the ionic conductivity and mechanical properties of the CPE were studied. The results showed that the mechanical properties and ionic conductivity of the CPE were obviously improved by filling the modified mesoporous silica. When loading 20 phr modified mesoporous silica, the tensile strength was increased to 6.2 MPa from 2.4 MPa, and that the ionic conductivity at room temperature was increased to 1.5 x 10(-5) S/cm from 2.0 x 10(-6) S/cm. POLYM. COMPOS., 39:3586-3593, 2018. (c) 2017 Society of Plastics Engineers
机译：通过1-羧甲基-3-甲基咪唑鎓双（三氟甲基磺酸盐）亚胺（三氟甲基磺酸盐）亚胺（[（HOOC）C（1）C（1）IM] [NTF2] [NTF2 ]）。使用X射线光电子能谱，氮吸附 - 解吸分析，透射电子显微镜，现场发射扫描电子显微镜，能量分散X射线光谱，能量分散X射线光谱，能量分散X射线光谱和热重分析来研究改性介孔二氧化硅的酯化反应和结构。分析结果表明[（HOOC）C1C1IM] [NTF2]的羧基可以将催化酯化反应与中孔二氧化硅表面的羟基发生，引入ILS不影响中孔二氧化硅的长距离有序孔结构，以及改性的介孔二氧化硅含有8.14％（wt。）[（HOOC）C（1）C（1）IM] [NTF2]。此外，通过将改性的介孔二氧化硅和双（三氟甲磺酸）酰亚胺锂盐（LITFSI）引入羧酸丁二烯 - 丙烯腈橡胶（XNBR）基质和CPE的离子电导率和机械性能，制备复合聚合物电解质（CPE）。研究过。结果表明，通过填充改性的介孔二氧化硅明显改善了CPE的机械性能和离子电导率。加载20phr改性的介孔二氧化硅时，抗拉强度从2.4MPa增加到6.2MPa，并且室温下的离子电导率从2.0×10（-6）升至1.5×10（ - 5）S / cm /厘米。聚合物。 Compos。，39：3586-3593,2018。（c）2017年塑料工程师协会

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  • 来源
    《Polymer Composites》 |2018年第10期|共8页
  • 作者

    Lu Yanbo; Wang Ran; Ren Wentan; Zhang Yong;

  • 作者单位

    Shanghai Jiao Tong Univ Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Shanghai 200240 Peoples R China;

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  • 正文语种 eng
  • 中图分类 增强塑料、填充塑料;
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