| abstract |
(Problem) A polycarbonate resin composition and optical material having high refractive index and fluidity suitable for molding, low birefringence and hardly undergoing optical deformation are provided. (Solution means) Poly containing the polycarbonate resin (A) which has the structural unit (a) represented by general formula (4), and the polycarbonate resin (B) which has the structural unit (b) represented by general formula (5) Carbonate resin composition. (In formula (4), X is a C1-C4 alkylene group.) (In formula (5), R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxyl group having 1 to 20 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, or a cycloalkyl having 5 to 20 carbon atoms. Actual group, an aryl group having 6 to 20 carbon atoms or an aryloxy group having 6 to 20 carbon atoms, and Y is an alkylene group having 1 to 4 carbon atoms.) |