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ju ding er suan yi er zuo - dian hua na luo he wu de dao dian xing
Author(s): 
Pages: 415-420
Year: Issue:  4
Journal: Journal of East China University of Science and Technology(Natural Science Edition)

Keyword:  聚酯碘化钠络合物固体电解质离子导电性快离子导体导电性热分析;
Abstract: 考查了由聚丁二酸乙二酯(PES-2,4)和NaI形成的络合物结构和导电性的关系,发现NaI主要溶解在高分子的无定形区域;PES-2,4与NaI形成的络合物体系是半结晶的聚合物电解质,其结晶体的结构类似于纯PES-2,4。NaI的加入,使聚合物的玻璃化转变温度、结晶化转变温度均升高,而结晶度和结晶速度降低。电解质的导电率随NaI浓度变化而变化,NaI浓度高,其导电率高,当[NaI]/(链节单元]=1/4(摩尔浓度比)时,电解质的导电率可达10~■S/cm(90℃),其中无定形区的导电是主要的。导电率与温度的关系偏离阿累尼乌斯方程,伹也不完全符合WLF方程,导电行为不可简单地用它们来解释。
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