| abstract |
PROBLEM TO BE SOLVED: To provide a polycarbonate polyol having good solubility in a solvent, a polycarbonate (meth) acrylate derived therefrom and having improved storage stability, and a solid electrolyte using the same. SOLUTION: The polycarbonate polyol is It is prepared by polycondensation of two glycols with a carbonic diester, phosgene or chloroformate. Glycols of the the general formula HO- (CH 2 CH 2 O) n - H (n is an integer of 2 to 10), and the general formula HO-R- It is a glycol represented by OH (R is an alkylene group having 4 to 20 carbon atoms). The (meth) acrylic acid is reacted with the hydroxyl groups of the polycarbonate polyol to form (meth) acrylate. Further, when an alkali metal salt is added to the resin obtained by polymerizing the polycarbonate (meth) acrylate, a polymer solid electrolyte having high ionic conductivity and excellent electrochemical stability can be obtained. |