| Outline of Final Research Achievements |
In this study, we developed a system for separating, recovering, and reusing unreacted CO2 and monomers, which are indispensable for high-yield synthesis of CO2/epoxide copolymers with excellent ionic conductivity. In the first year, we designed a model of the basic structure of the reactor in collaboration with overseas research institutes. In the next fiscal year, as a derivative effect from this research, we will conduct a new research at overseas research institutes to analyze and evaluate the high gas barrier properties of CO2/epoxide copolymers in detail, and use the existing equipment at overseas research institutes. The gas permeation coefficient of nitrogen, hydrogen, etc. was measured. In the final year, we measured the oxygen permeability coefficient, which was impossible to measure at overseas research institutes, and clarified for the first time the excellent gas barrier function of CO2/epoxide copolymer.
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