Design of new ion conductive polymer based on room-temperature molten salts and application to the ionics devices.

在这个项目中，我们用“中和法”合成了大量的新型离子液体。一系列的胺被一系列的酸中和。等摩尔混合物只产生盐，没有任何副产物。合成了数十种新型离子液体，并从结构上分析了它们的基本性质。还对离子液体的功能进行了改进，如两性离子液体在一个分子上同时具有阳离子和阴离子，并且在电位梯度下不发生迁移。它们有望成为一种新型的非挥发性电化学溶剂。此外，还将一系列优良的结构引入到聚合物结构中。含有乙烯基团的离子液体的聚合大大降低了离子电导率。在可聚合的乙烯基团和离子液体部分之间引入间隔基，抑制了这种还原。以此为基础合成了性能优良的离子导电聚合物。一些被用作锂离子电池、电容器等电化学设备的电解液。这些都表现出了与有机溶剂电解液相当的优异性能。

In this project, quite a lot of new ionic liquids have been synthesized according to the new method called "Neutralization Method". A series of amines were neutralized with a series of acid. Equimolar mixture gave only salt without any by-product. Several tens of new ionic liquids were prepared and their basic characteristics were analyzed related to their structure. Functional improvement of the ionic liquids was also developed such as Zwitterionic liquid which possesses both cation and anion on one molecule, and showed no igration under potential gradient. These are expected as a new non-volatile electrochemical solvent. Further a series of excellent structure have been introduced into polymer structure. Polymerization of ionic liquids containing vinyl groups reduced the ionic conductivity considerably. This reduction was suppressed by the introduction of spacer group between polymerizable vinyl group and ionic liquid part. Excellent ion conductive polymers have been synthesized according to this. Some were applied as electrolytes for electrochemical devices such as lithium ion battery, capacitor, and so on. These showed excellent performance comparable to organic solvent electrolytes.