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
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
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.
Received: 29 August 1992
Accepted manuscript online:
PACS:
66.30.H-
(Self-diffusion and ionic conduction in nonmetals)
(Reinforced polymers and polymer-based composites)
Cite this article:
WU CHENG-PEI (吴承佩), LIU WAN-YU (刘皖育), LI XU-HUI (厉旭辉), XU KUI (徐葵), YU WEN-HAI (俞文海) STUDY ON PREPARATION OF UV CROSS-LINKING FILMS OF POLYURETHANE-LiClO4 COMPLEXES AND THEIR IONIC CONDUCTIVITY 1993 Acta Physica Sinica (Overseas Edition) 2 841
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