摘要
以具有良好力学性能的无定形聚环氧氯丙烷(PECH)为主链,不同长度的齐聚醚为侧链,合成了一系列不同取代度的接枝共聚物(GECH)。研究了高氧酸锂溶于该聚合物介质中的离子传导行为。接枝改性使络合物的离子电导率提高近三个数量级。离子传导行为与聚合物基体的玻璃化转变温度之间表现出明显的相关性,进一步为聚合物无定形态介质中离子传导的自由体积理论的解释提供了证据。
A series of Oligooxyethylene-grafted Polyepichlorhydrins were synthesized as trie host of polymer ionic conductor, and the ionic conduction behavior of their lithium salt-complexes was investigated. As a consequence of graft,the ambient temperature ionic conductivity of the resultant conductor was improved by about 3 orders of magnitude. An obvious correlation arises between the segmeotal relaxation and ionic movement, which provides more evidence for tbe theoretical analysis of ionic conduction in polymer media based on free volume-model.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1992年第1期85-89,共5页
Polymer Materials Science & Engineering
关键词
聚环氧氯丙烷
齐聚醚
离子传导
graft copolymer ,ionic conduction,polyepchlorohydrin,oligoether.
