摘要
研究了以等离子体引发聚合方法合成的无规和双嵌段聚[甲基丙烯酸甲氧基多缩乙二醇酯1000(MG_(22))-丙烯酰胺(AM)]共聚物的凝集态结构对络合物的离子导电性的影响。MG22与AM以不同的共聚方式所获得的共聚物凝聚态结构具有明显的差异,从而影响其离子导电性。无规共聚物与LiCF_3SO_3络合物电导率在AM含量为40～70 mol％范围内,呈现出最佳值。而嵌段共聚物中电导率随AM含量的增加而逐渐降低,并在AM含量达60 mol％时电导率急剧下降。这反映了在共聚物中较长的AM链段相区对络合物的离子迁移具有阻塞作用。
The effect of morphology on the ionic conduction of the lithium salt-complex based on the random as well as block copolymerized oligooxyethylene methacrylate (MEOn)and acryla-mine (AM) was studied in the present work. The different ways of copolymerization results in a wide discrepancy in the morphology of the resultant copolymers, and consequently influences ionic conduction occuring in these media. For complexes based on random type copo-lymer a maximum in ionic conductivity was found to locate in the AM-content range of 40~ 70% (Mol. %) , while for block type ionic conductivity decreases progressively with the increase of AM-content, along with a dramatical drop at AM-content of 60%. This latter fact reflects that large dimension of AM-domain may constitute obstacle to ionic traffic.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1991年第4期39-43,共5页
Polymer Materials Science & Engineering
基金
国家自然科学基金
关键词
电导率
等离子体
聚合
锂
络合物
conductivity, morphology, dielectric coefficient, plasma polymerized.
