Xiao Wenhao, Xu Liguo, Liu Pan, Chen Yang, Zhang Jie, Xu Jinbao
Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China.
Polymers (Basel). 2021 Jul 31;13(15):2546. doi: 10.3390/polym13152546.
Hybrid copolymerization of structurally different, reactivity and mechanism distinct monomers (e.g., cyclic and vinyl type monomers) is of great interest and challenge for both academic research and practical application. Herein, ethylene oxide---butyl methacrylate--poly(ethylene glycol) benzyl methacrylate (EO--BMA--PEO), a statistical copolymer was synthesized via hybrid copolymerization of EO and BMA using an uncharged, non-nucleophilic organobase -BuP as the catalyst. Detailed characterizations indicate that hybrid copolymerization of ethylene oxide and vinyl monomer forms a statistical copolymer concurrently with the transesterification of -butyl group and oligomer PEO anions. The application of the copolymer as all solid lithium-ion battery polymer electrolyte was investigated by detecting the ionic conductivity (σ) with electrical impedance spectrum measurement.
结构不同、反应活性和机理各异的单体（如环状和乙烯基类单体）的杂化共聚，对于学术研究和实际应用而言都极具吸引力且充满挑战。在此，通过使用不带电荷、非亲核的有机碱 -BuP 作为催化剂，使环氧乙烷、甲基丙烯酸丁酯和聚乙二醇甲基丙烯酸苄酯（EO--BMA--PEO）进行杂化共聚，合成了一种无规共聚物。详细表征表明，环氧乙烷与乙烯基单体的杂化共聚在形成无规共聚物的同时，还伴随着丁酯基团与低聚物 PEO 阴离子的酯交换反应。通过用电阻抗谱测量法检测离子电导率（σ），研究了该共聚物作为全固态锂离子电池聚合物电解质的应用。
