| abstract |
(57) [Summary] [Structure] A mixture of an isothiocyanate compound and an active hydrogen compound has the formula (1) (In the formula, X, Y and Z represent an oxygen atom or a sulfur atom, at least one of X, Y and Z is a sulfur atom, and R Represents a C 1 -C 8 alkyl group. ) The sulfur-containing phosphoric acid ester represented by the formula (1) is added as an internal release agent, and template polymerization is carried out. [Effect] In addition to excellent mold release performance and solubility in raw material monomers, the resulting molded product has little turbidity. |