Polyarylether-based polymer with side chain in methoxypolyethylene glycols structure, solid polymer electrolyte and preparation methods therefor
申请人:DALIAN UNIVERSITY OF TECHNOLOGY
公开号:US11365286B2
公开(公告)日:2022-06-21
A polyarylether-based polymer with side chain in methoxypolyethylene glycols structure, a solid polymer electrolyte and preparation methods therefore are disclosed. The main chain of the polymer has a polymer structure containing a polyarylether group, the side chain has a methoxypolyethylene glycols structure, and the structural formula of the polyarylether-based polymer is as follows:
and the preparation method for the polyarylether-based polymer with side chain in methoxypolyethylene glycols structure comprises: step (1): preparing a polymer containing a polyarylether group; and step (2): dissolving the polymer containing a polyarylether group and methoxypolyethylene glycols in a solvent, then adding a catalyst, dripping a co-catalyst after the catalyst is dissolved, and conducting reaction while stirring to obtain the polyarylether-based polymer with side chain in methoxypolyethylene glycols structure. The all-solid polymer electrolyte prepared by the present invention has favorable ionic conductivity and excellent heat resistance, high temperature resistance and mechanical strength.
本发明公开了一种侧链为甲氧基聚乙二醇结构的聚芳醚基聚合物、一种固体聚合物电解质及其制备方法。该聚合物的主链具有含有聚芳醚基团的聚合物结构,侧链具有甲氧基聚乙二醇结构,聚芳醚基聚合物的结构式如下:
以及侧链为甲氧基聚乙二醇结构的聚芳醚基聚合物的制备方法,包括:步骤(1):制备含有聚芳醚基团的聚合物;步骤(2):将含有聚芳醚基团的聚合物和甲氧基聚乙二醇溶解在溶剂中,然后加入催化剂,待催化剂溶解后滴入助催化剂,边搅拌边进行反应,得到侧链为甲氧基聚乙二醇结构的聚芳醚基聚合物。本发明制备的全固态聚合物电解质具有良好的离子导电性和优异的耐热性、耐高温性和机械强度。