| 超支化聚三唑固态聚电解质及其锂离子和锌离子导电性 |
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| 引用本文： | 欧笑颖,刘奔,伍建华,彭晓春. 超支化聚三唑固态聚电解质及其锂离子和锌离子导电性[J]. 吉首大学学报(自然科学版), 2020, 41(6): 61-69. DOI: 10.13438/j.cnki.jdzk.2020.06.012 |
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| 作者姓名： | 欧笑颖 刘奔 伍建华 彭晓春 |
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| 作者单位： | (1.吉首大学化学化工学院,湖南 吉首 416000;2.吉首大学物理与机电工程学院材料系,湖南 吉首 416000) |
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| 基金项目： | 吉首大学研究生科研创新项目;湖南省教育厅优秀青年项目;吉首大学校级项目;国家自然科学基金;实验室开放基金;创新项目 |
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| 摘 要： | 带刚性结构的超支化聚合物具有优良的溶解性,度低黏与力学性能优异,可用于制备固态电解质.含叠氮基的单体M1和含炔基的单体M2在亚铜离子Cu+的催化下发生叠氮-炔点击化学反应,得到超支化聚三唑hb-GPTA.该聚合物具有良好的溶解性、成膜性和热稳定性（热分解温度为350 ℃）.将该聚合物分别与三氟甲基磺酰亚胺锂 (LiTFSI)及三氟甲基磺酸锌 (Zn(OTf)2)进行掺杂,制备固态电解质,对其电化学性能进行表征.结果表明,hb-GPTA/LiTFSI体系具有更高的电导率（32.7 μ S·cm-1）,电化学窗口为5.2 V;相比之下,hb-GPTA/Zn（OTf）2体系电导率较低（0.42 μS·cm-1）,但其在-1~6 V电压范围内一直保持稳定.结合电化学稳定性分析结果,可以推断含三氮唑的聚合物在制作锌离子电池方面具有潜在的应用价值.
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| 关 键 词： | 超支化聚合物 点击化学 聚合物电解质 导电性 |
Hyperbranched Polytriazole Solid Polyelectrolyte and Its Li-Ion and Zinc-Ion Conductivity |
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| OU Xiaoying,LIU Ben,WU Jianhua,PENG Xiaochun. Hyperbranched Polytriazole Solid Polyelectrolyte and Its Li-Ion and Zinc-Ion Conductivity[J]. Journal of Jishou University(Natural Science Edition), 2020, 41(6): 61-69. DOI: 10.13438/j.cnki.jdzk.2020.06.012 |
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| Authors: | OU Xiaoying LIU Ben WU Jianhua PENG Xiaochun |
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| Affiliation: | (1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan China; 2.Department of Materials, College of Physics, Mechanical and Electrical Engineering, Jishou University, Jishou 416000, Hunan China) |
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| Abstract: | Hyperbranched polymer with rigid structure usually have good solubility, low viscosity and outstanding mechanical properties, which could be used to prepare solid electrolyte. Hyperbranched polytriazole (hb-GPTA) was synthesized due to azide-acetylene click chemistry reaction of alkynyl-based monomer M1 and azido-contained monomer M2 with catalysis by Cu(I). The hb-GPTA exhibited good solubility, film formation property, and thermostability (the thermal decomposition temperature is 35 ℃). The hb-GPTA was doped with LiTFSI and Zn(OTf)2 respectively to prepare solid electrolytes whose electrochemical properties were characterized. The results demonstrated that LiTFSI doped polymer had higher conductivity of 3.27×10-5 S/cm and the electrochemical window is 5.2 V, while the Zn(OTf)2 doped polymer exhibited lower conductivity of 4.20×10-7 S/cm but remained stable within the voltage range of -1~ 6V. It could be inferred that polymer with triazole has potential application value in making zinc batteries together with electrochemical stability analysis. |
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| Keywords: | hyperbranched polymer click chemistry polymer electrolyte electrical conductivity |
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