CAJ | 학술논문

以甲氧基聚乙二醇甲基丙烯酸酯(MPEGM)和十六烷基聚乙二醇甲基丙烯酸酯(HPEGM)为单体,三(甲氧基聚乙二醇)-铝酯(MPEG-Al酯)为增塑剂,锂盐为高氯酸锂(LiClO4),采用自由基溶液聚合法制备了聚合物电解质 P(MPEGM-HPEGM)/MPEG-Al。用红外光谱(FT-IR)、差热分析(DSC)和交流阻抗等方法对聚合物及电解质的结构与性能进行了研究。测试结果表明,MPEGM和 HPEGM共聚生成 P(MPEGM-co-HPEGM)；聚合物中聚氧化乙烯(PEO)链段的运动能力得到提高,有利于离子传输；聚合物电解质膜具有优良的热稳定性和电化学稳定性；以 MPEG7-Al 为增塑剂,当m(MPEGM)∶m(HPEGM)∶m(MPEG7-Al)=4∶1∶5,n(Li+)∶n(EO)=1∶20时,30℃下,聚合物电解质的离子电导率最高达到0.43×10-3 S/cm；离子迁移数达到0.3；电化学窗口为4.8V。
이갑양기취을이순갑기병희산지(MPEGM)화십륙완기취을이순갑기병희산지(HPEGM)위단체,삼(갑양기취을이순)-려지(MPEG-Al지)위증소제,리염위고록산리(LiClO4),채용자유기용액취합법제비료취합물전해질 P(MPEGM-HPEGM)/MPEG-Al。용홍외광보(FT-IR)、차열분석(DSC)화교류조항등방법대취합물급전해질적결구여성능진행료연구。측시결과표명,MPEGM화 HPEGM공취생성 P(MPEGM-co-HPEGM)；취합물중취양화을희(PEO)련단적운동능력득도제고,유리우리자전수；취합물전해질막구유우량적열은정성화전화학은정성；이 MPEG7-Al 위증소제,당m(MPEGM)∶m(HPEGM)∶m(MPEG7-Al)=4∶1∶5,n(Li+)∶n(EO)=1∶20시,30℃하,취합물전해질적리자전도솔최고체도0.43×10-3 S/cm；리자천이수체도0.3；전화학창구위4.8V。
A novel comb-like copolymer electrolyte was designed by co-polymerizing of two macro-monomers:methoxy-poly(ethylene glycol)methacrylate (MPEGM)and hexadecal-poly (ethylene glycol)methacrylate (HPEGM),tris(methoxypolyethyleneglycol)aluminate ester (MPEG-Al ester),Li-salt(LiClO4 ).Perform-ances of the polymer electrolytes were studied by FT-IR,DSC and alternating current(AC)impedance and so on.The results showed that P(MPEGM-HPEGM)had been formed and the motion of PEO chains had been im-proved.The polymer electrolytes possessed excellent thermal stability and electrochemical stability.And when the weight ratio of MPEGM to HPEGM to MPEG7-Al ester was 4∶1∶5,the maximum ionic conductivity val-ue reached 0.43×10-3 S/cm with n(Li+)∶n(EO)=1∶20 at 30℃.