Structure, Morphology and Ionic Conductivity of Graft Polymer Networks Containing LiClO4

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (12): 1760.

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Structure, Morphology and Ionic Conductivity of Graft Polymer Networks Containing LiClO₄

LI Dan, HU Chun-Pu, YING Sheng-Kang

Institute of Material Sci.and Eng., East China Univ.of Science and Technology, Shanghai, 200237

Received:1992-12-22 Revised:1993-05-20 Online:1993-12-24 Published:1993-12-24

Abstract

Abstract: Two kinds of poly(ethylene oxide) (PEO800 and PEO2000) macromer, which have different functionalities, were synthesized and polymerized in the presence of LiClO₄ to form so-called “graft polymer network”.The PEO800 networks were completely amorphous and showed quite good ambient ionic conductivity (σ_298K = 4.8×10^-5 S · cm^-1).However, the PEO2000 networks were crystalline and the conductivities for these polymer networks were lower than that of PEO800 systems.The relationship between the structure and morphology as well as the conductivity for those graft polymer networks has been discussed.

Key words: Polymer electrolytes, Macromer, Polymer network, Poly(ethylene oxide)

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LI Dan, HU Chun-Pu, YING Sheng-Kang . Structure, Morphology and Ionic Conductivity of Graft Polymer Networks Containing LiClO₄[J]. Chem. J. Chinese Universities, 1993, 14(12): 1760.

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Structure, Morphology and Ionic Conductivity of Graft Polymer Networks Containing LiClO₄

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