含LiClO_4的接枝聚合物网络的结构、形态与离子导电性能研究  

Structure, Morphology and Ionic Conductivity of Graft Polymer Networks Containing LiClO_4

作　　者：李丹[1] 胡春圃[1] 应圣康[1] 

机构地区：[1]华东理工大学材料科学研究所,上海200237

出　　处：《高等学校化学学报》1993年第12期1760-1762,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：聚合物网络快离子导体成膜后有良好的机械强度、尺寸稳定性,但室温电导率稍偏低。本文通过大单体技术合成兼具优良室温电导率(σ_(298K)=4.8×10^(-5)S·cm^(-1))与机械强度的接枝聚合物网络快离子导体,并研究了网络结构、形态与离子导电性之间的关系。 1 实验部分 1.1 试剂及精制 试剂均为化学纯。分子量为800与2000的聚氧化乙烯(PEO800,Two kinds of poly(ethylene oxide) (PEO800 and PEO2000) macromer, which have different functionalities, were synthesized and polymerized in the presence of LiClO4 to form so-called “graft polymer network”. The PEO800 networks were completely amorphous and showed quite good ambient ionic conductivity (σ298K = 4. 8×10-5 S · cm-1). However, the PEO2000 networks were crystalline and the conductivities for these polymer networks were lower than that of PEO800 systems. The relationship between the structure and morphology as well as the conductivity for those graft polymer networks has been discussed.

关 键 词：聚合物电解质 大单体 聚合物网络 

分 类 号：O646.21[理学—物理化学]