C(OC)(=O)C(C)=C.C(OCC1(CC)COC1)(=O)C(C)=C.C(OCC1CCC2OC2C1)(=O)C=C.[C:34]1(=[O:39])[O:38][CH2:37][CH2:36][O:35]1.[C:40](=[O:47])([O:44][CH2:45][CH3:46])[O:41][CH2:42][CH3:43].N(C(C)(C)C#N)=NC(C)(C)C#N>>[C:34]1(=[O:39])[O:38][CH2:37][CH2:36][O:35]1.[C:40](=[O:47])([O:44][CH2:45][CH3:46])[O:41][CH2:42][CH3:43]60.0 g of methyl methacrylate, 16.0 g of 3-ethyl-3-oxetanylmethyl methacrylate, 4.0 g of 3,4-epoxycyclohexylmethyl acrylate, 226.6 g of ethylene carbonate and 0.15 g N,N′-azobis(isobutyronitrile) were placed in a 500 Ml Capacity three-necked flask equipped with a refluxing condenser, and stirred and mixed for 30 minutes while nitrogen gas was introduced into the flask. Then the resulting mixture was heated to 70° C. and radical polymerization was carried out over 8 hours at the temperature. The resulting reaction mixture was cooled to 40° C. 226.6 g of diethyl carbonate and 0.15 g of 2,2′-azobis(isobutyronitrile) were added to the reaction mixture and the resulting mixture was again heated to 70° C. to carry out radical polymerization at the temperature for another 8 hours. Then the resulting reaction mixture was cooled to 40° C. to obtain a solution of a polymer in a concentration of 15% by weight in a solvent of ethylene carbonate/diethyl carbonate mixture.
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