Method for setting polymerization conditions, method for manufacturing optical materials

摘要

In the method for setting polymerization conditions of the present invention, a polymerization-reactive compound containing an episulfide compound and a composition containing a polymerization catalyst are heated, and the functional group before heating of the polymerization-reactive compound is heated at a predetermined temperature. The physical property acquisition step (S10) of acquiring the derived physical property value a and the property value b derived from the residual functional group after keeping the temperature for a predetermined period of time (S10), the residual functional group rate calculation step (S20) of calculating the residual functional group rate from the property value a and the property value b, and , From the residual functional group rate, a reaction rate coefficient calculation step (S30) of calculating a reaction rate coefficient based on a reaction rate equation, and polymerization based on a reaction rate equation using the reaction rate coefficient so as to satisfy the following conditions. A polymerization condition setting method comprising a polymerization temperature calculation step (S40) of inverting each polymerization temperature at predetermined time intervals within time. (Condition) In the range of polymerization rate of 0% or more and 20% or less, the polymerization rate exceeds 0%/hr and is 3.0%/hr or less, and the standard deviation is 0.8%/hr or less.