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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50933

    Title: Synthesis and characterization of a new hyperbranched organic-inorganic solid polymer electrolyte with cyanuric chloride as a core element
    Authors: Pan,YC;Saikia,D;Fang,J;Tsai,LD;Fey,GTK;Kao,HM
    Contributors: 化學學系
    Date: 2011
    Issue Date: 2012-03-27 18:13:11 (UTC+8)
    Publisher: 國立中央大學
    Abstract: A new hyperbranched organic-inorganic hybrid electrolyte based on the use of 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride, CC) as the coupling core to couple with oligo(oxyalkylene)-amines, followed by condensation with (3-glycidoxypropyl)-trimethoxysilane (GLYMO) and complexed with LiClO(4), has been prepared and characterized. The Vogel-Tamman-Fulcher (VTF) like conductivity behavior is observed in the present organic-inorganic hybrid electrolytes with a maximum ionic conductivity value of 4.4 x 10(-5) S cm(-1) at 30 degrees C. Multinuclear NMR techniques are used to provide a microscopic view for the specific interaction between the polymer chains and LP cations and their dynamic behaviors. The results of 2D (1)H-(13)C wide-line separation (WISE) and (7)Li static line NMR width measurements divulge that the mobility of the (7)Li cations is strongly related to a dynamic environment created by the polymer motion in the amorphous phase. The combined results of conductivity and (7)Li pulse-gradient spin-echo (PGSE) NMR self-diffusion coefficient measurements reveal that the conductivity enhancement at low salt concentrations is mainly caused by the high mobility of the lithium cations. (C) 2011 Elsevier Ltd. All rights reserved.
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