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Acta Chimica Sinica >

2012 , Vol. 0 >Issue 05: 591 - 598

DOI: https://doi.org/10.6023/A1104074

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Study on the Interaction Between Lithium Ion and Polar Group in GPE Based on the Crosslinked Polymer of P(MMA-MAh)-PEG1500 with FTIR

  • Huang Yun ,
  • Ma Xiaoyan ,
  • Lin Yuanhua ,
  • Wang Xu
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  • a School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500;
    b State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610500;
    c Department of Applied Chemistry, Northwestern Polytechnical University, Xi'an 710129

Received date: 2011-04-07

  Revised date: 2011-10-10

  Online published: 2011-11-28

Supported by

Project supported by the Youth Fund of Educational Committee of Sichuan Province (No. 10ZB112), the Open Fund (No. PLN1111) of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation of Southwest Petroleum University, the Science and Technology Fund of Southwest Petroleum University (No. 2010XJZ171) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20115121120005).

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Abstract

The crosslinked polymer of P(MMA-MAh)-PEG1500 was synthesized by reacting polyethylene glycol (PEG1500) with the copolymer of poly(methyl metacrylate-maleic anhydride) (P(MMA-MAh)) and endcapping the residual carboxylic acid with methanol. The properties of gel polymer electrolyte (GPE), consisted of P(MMA-MAh)-PEG1500 used as polymer matrix, propylene carbonate (PC) as a plasticizer and LiClO4 as lithium ion producer, was undoubtedly depended on the micro interaction existed in the components. Characterization of interaction of the polar group (C＝O and C—O—C) in PC or crosslinked polymer with Li+ has been thoroughly examined using FTIR. The quantitative analysis of FTIR showed that the absorptivity coefficient (a) of PC/LiClO4 and polymer/LiClO4 was 0.113 and 0.267, respectively, which meant that the Li+ bonded polar group of C＝O and C—O—C was more sensitive than free C＝O and C—O—C in FTIR spectra. The limit value of bonded C＝O and C—O—C equivalent fraction of PC/LiClO4 and polymer/LiClO4 was 94% and 45%, respectively, which implied that the interaction within the components was reversible and the intensity of interaction was ordered as PC/LiClO4 and polymer/LiClO4.

Key words： gel polymer electrolyte; crosslinked polymer; interaction; quantitative analysis; IR spectroscopy

Cite this article

Huang Yun , Ma Xiaoyan , Lin Yuanhua , Wang Xu . Study on the Interaction Between Lithium Ion and Polar Group in GPE Based on the Crosslinked Polymer of P(MMA-MAh)-PEG1500 with FTIR[J]. Acta Chimica Sinica, 2012 , 0(05) : 591 -598 . DOI: 10.6023/A1104074

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