| 研究実績の概要 |
Ionic gels (IGs) using ionic liquids (ILs) have received remarkable attention for their advanced application in electrochemical and electromechanical devices, such as actuators, lithium batteries, electric double-layer capacitors, dye-sensitized solar cells and fuel cells. In this work for we used multifunctional thiol monomers having uniform structure and good compatibility with the IL 1-butyl-3-methylimidazolium bis(fluorosulfonyl)imide (BMImFSI) to develop new types of ionic gels. We have characterized their conductive, thermal and mechanical properties and investigated their internal structure by scanning microscopic light scattering (SMILS) techniques. The mesh size of the IGs was found to be highly dependent on the functionality of the monomer both in IL and conventional solvent media. This can be an important tool to combine internal structures with the mechanical properties for characterization of soft materials in a smart nondestructive way.
At the same time, we have also successfully made a new type of tough and flexible composite material based on d IL, its polymer and CNT. These composites are highly potential material for fabricating electrical sensors and actuators. Their mechanical, conductive, morphological and thermal properties have been investigated. One of the very unique point of these composites are their high conductivity at low CNT content. We have found conductivity of 4.5 S/cm at 15 wt% CNT content. This materials showed high potential to use in electrochemical devices.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
According to the proposal that I have submitted during last year, my plan was to develop ionic gels using variety of combination and characterize them. I am happy to inform here that I have not only successfully synthesized but also achieved promising results in developing new types of ionic gels. I have also characterized their internal structure and results based on these experiments will be reported very soon.
Also, for application of these ionic gels and developing actuators new type composite materials based on ionic liquid its polymer and CNT have developed. These material will be used as an electrode material for actuators. The composite materials showed tunable mechanical toughness that can be controlled by the amount of ionic polymers and ionic liquid. They also exhibited high conductivity and have the potential to use as a filament for 3D printer.
I have presented these research results in several international conferences and and published as peer reviewed proceeding. I am currently preparing to submit my work in peer reviewed journal.
My activities were not only limited in research work only, I have also joined domestic internship at a company (NIDEK CO. LTD.) and attended outreach activity (SRI innovation workshop at USA) to widen my make myself capable of the future demand.
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