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

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.     

ESR研究非晶Ag￣＋导体的晶化

用电子自旋共振（ＥＳＲ）方法对非晶Ａｇ￣＋离子导体０．８５ＡｇＩ～０．１５Ａｇ＿４Ｐ＿２Ｏ＿７的热处理晶化过程进行研究，在样品中掺入微量（约１×１０￣（－３）ｇ／ｇ）的Ｍｎ￣（２＋）或Ｖ￣（４＋）离子作为自旋探针离子，它们的ＥＳＲ谱强度随升温线性减弱，当样品完全晶化时ＥＳＲ谱消失。这样测定的样品完全晶化的温度分别为９８℃（掺Ｍｎ的）和１０８℃（掺Ｖ的）．本文还对Ｍｎ￣（２＋）和Ｖ￣（４＋）的ＥＳＲ谱进行了分析。     

聚合物单阳离子导体的制备—羧酸型梳状单离子导体

本文报道一种制备聚合物单阳离子导体的新方法。马来酸酐－醋酸乙烯酯及马来酸酐－苯乙烯共聚物以聚乙二醇单甲醚醇解，使酸酐环打开而得到带有聚乙二醇侧链的羧酸型梳状聚合物，其锂盐在加入适当增塑剂成膜后，可作为聚合物单阳离子导体，其结构以非晶态为主，具有较低的玻璃化转变温度及较好的热稳定性，增塑后的室温电导率最高可达１０＾－６Ｓ／ｃｍ。此外还研究了聚合物结构、阳离子半径、增塑剂、温度及外加额率等因素对电导率     

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

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.     

多嵌段共聚物磺酸盐离子导体的合成、结构及导电特性

合成了系列环氧乙烷-(对苯二甲酸乙二酯-CO-间苯二甲酸乙二酯磺酸钠)多嵌段共聚物(EOTM-SO₃Na),用NMR、WAXD和DSC等方法进行了结构表征。EOTM-SO₃Na是一种新型的单阳离子导体,室温电导率可达2.3×10^-6S·cm^-1。