Polymer electrolytes based on triblock-copoly(oxyethylene/oxypropylene/oxyethylene) systems

被引：53

作者：

Bakker, A ^{[1
]}

Lindgren, J ^{[1
]}

Hermansson, K ^{[1
]}

机构：

[1] UNIV UPPSALA,INST CHEM,S-75121 UPPSALA,SWEDEN

来源：

POLYMER | 1996年 / 37卷 / 10期

基金：

瑞典研究理事会;

关键词：

electrolytes; triblock copolymers; microstructure;

D O I：

10.1016/0032-3861(96)87303-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polymer electrolytes based on triblock copolymers of ethylene oxide (EO)/propylene oxide (PO)/ethylene oxide of moderate molecular weight and narrow block-length distributions, doped with M(CF3SO3)(2) and M[N(CF3SO2)(2)](2) (M = Mg, Ca, Sr and Ba), LiCF3SO3 and LiN(CF3SO2)(2) have been investigated using infrared spectroscopy, differential scanning calorimetry and conductivity measurements. The effects of varying the EO/PO block length, composition and temperature on the phase behaviour, ion-pair formation and conductivity of the polymer electrolytes have been studied. A two-phase microstructure has been observed. Ion pairing occurs for the triflate salts and the amount was found to be sensitive to the relative block sizes rather than the molecular weight of the copolymer. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：1871 / 1878

页数：8

共 20 条

[1] CONTACT ION-PAIR FORMATION AND ETHER OXYGEN COORDINATION IN THE POLYMER ELECTROLYTES M[N(CF3SO2)(2)](2)PEO(N) FOR M=MG, CA, SR AND BA [J].