中国物理B ›› 1993, Vol. 2 ›› Issue (11): 841-849.doi: 10.1088/1004-423X/2/11/006

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STUDY ON PREPARATION OF UV CROSS-LINKING FILMS OF POLYURETHANE-LiClO4 COMPLEXES AND THEIR IONIC CONDUCTIVITY

吴承佩1, 刘皖育1, 厉旭辉1, 徐葵2, 俞文海2   

  1. (1)Department of Materials Science and Engineering, University of Science and Technology oF China, Hefei 230026, China; (2)Laboratory of Structure Analysis, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:1992-08-29 出版日期:1993-11-20 发布日期:1993-11-20

STUDY ON PREPARATION OF UV CROSS-LINKING FILMS OF POLYURETHANE-LiClO4 COMPLEXES AND THEIR IONIC CONDUCTIVITY

WU CHENG-PEI (吴承佩), LIU WAN-YU (刘皖育), LI XU-HUI (厉旭辉), XU KUI (徐葵)a, YU WEN-HAI (俞文海)a   

  1. Department of Materials Science and Engineering, University of Science and Technology oF China, Hefei 230026, China; a Laboratory of Structure Analysis, University of Science and Technology of China, Hefei 230026, China
  • Received:1992-08-29 Online:1993-11-20 Published:1993-11-20

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摘要： The complexes of polyurethane containing double bonds with LiClO4 were formed, and cross-linked films were produced by UV radiation, All of the films were uniform, transparent, flexible and smooth-faced with a considerable mechanical strength. The ionic conductivities of the films of several series of polymers with different molecule weights of PEG segment were measured, of which the highest is 8.09×10-5S·cm-1 at 300K under anhydrous atmosphere. Also the conductivity is deeply influenced by the molecule weight of the soft segment PEG of the polyurethane and the content of LiClO4. The transport number of Li+ is about 0.57. Structure characteristic measurement much as DSC, XRD, IR etc., have been done and the conductive mechanism is discussed.

Abstract: The complexes of polyurethane containing double bonds with LiClO4 were formed, and cross-linked films were produced by UV radiation, All of the films were uniform, transparent, flexible and smooth-faced with a considerable mechanical strength. The ionic conductivities of the films of several series of polymers with different molecule weights of PEG segment were measured, of which the highest is 8.09×10-5S·cm-1 at 300K under anhydrous atmosphere. Also the conductivity is deeply influenced by the molecule weight of the soft segment PEG of the polyurethane and the content of LiClO4. The transport number of Li+ is about 0.57. Structure characteristic measurement much as DSC, XRD, IR etc., have been done and the conductive mechanism is discussed.

中图分类号:  (Self-diffusion and ionic conduction in nonmetals)

  • 66.30.H-
61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation)) 68.60.Bs (Mechanical and acoustical properties) 78.30.-j (Infrared and Raman spectra) 81.70.Pg (Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis) 81.05.Qk (Reinforced polymers and polymer-based composites)