Highly-branched cross-linked poly(ethylene oxide) with enhanced ionic conductivity
作者: Nachiket ParanjapePraphulla Chandra MandadapuGang WuHaiqing Lin
作者单位: 1Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
刊名: Polymer, 2017, Vol.111 , pp.1-8
来源数据库: Elsevier Journal
DOI: 10.1016/j.polymer.2017.01.014
关键词: Ionic conductivityBranched poly(ethylene oxide)Glass transition temperature
英文摘要: Abstract(#br)Polymers containing poly(ethylene oxide) (PEO) have been investigated for solid electrolytes for lithium-ion batteries, which are preferred to be amorphous and have flexible polymer chains to achieve high Li ion conductivity. This paper reports ionic conductivity in a series of cross-linked PEOs prepared from poly(ethylene glycol) methyl ether acrylate (PEGMEA, monomer) and poly(ethylene glycol) diacrylate (PEGDA, cross-linker) via photopolymerization. The resulting copolymers contain short PEO side chains and thus high content of amorphous PEO. While the cross-linking enhances mechanical strength for solid electrolytes, the introduction of PEGMEA with methoxyl chain end groups decreases T g and increases ionic conductivity. The use of acrylate groups for polymerization,...
全文获取路径: Elsevier  (合作)
影响因子:3.379 (2012)

  • ethylene oxide 氧丙环
  • linked 连接的
  • poly 
  • ionic 离子的
  • conductivity 传导率
  • branched 分枝的
  • cross 十字
  • enhanced 增强