Citation: ZHANG Shengshui, DENG Zhenghua, WAN Guoxiang. CATIONIC CONDUCTIVITY FOR THE CROSSLINKED P [OLIGO (OXYETHYLENE) METHACRYLATE-COoMETHACRYLOYL ALKYLSULFONIC ACID LITHIUM][J]. Chinese Journal of Polymer Science, ;1991, 9(4): 326-332. shu

CATIONIC CONDUCTIVITY FOR THE CROSSLINKED P [OLIGO (OXYETHYLENE) METHACRYLATE-COoMETHACRYLOYL ALKYLSULFONIC ACID LITHIUM]

Received Date: 4 December 1990

Crosslinked copolymers with single Li+-ionic conductivity were prepared from oligo (oxyethylene) methacrylate (MEOn), methacryloyl alkylsulfonic acid lithium (SAMLi), and oligo (oxyethylene) dimethacrylate (DMEOn). Li+-ionic conductivity of the copolymer is improved by crosslinking and presented as a function of polymerization degree (n) in MEOn, comonomeric salt concentration (O/Li), and crosslinking degree. The crosslinked copolymer P (0.7 MEO14-0.3DMEO14-SHMLi) without other small molecular additives exhibits an optimum Li+-ionic conductivity of 1.2×10-6S/cm at 25℃.De polarization test in the cell composed of Li/copolymer/Li shows a constant dc ionic conductivity which closes gradually to the ac one with decreasing dc polarization potential.
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