METHOD FOR PRODUCING PARTIALLY PROTECTED POLYHYDROXYSTYRENE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a partially protected polyhydroxystyrene which has the hyroxy groups partially protected with a tertiary alkyl group or a tertiary alkyl group and an acetal group. SOLUTION: The method for producing a partially protected polyhydroxystyrene is characterized in that a polymer having the repeated units originated from styrene having a tertiary alkoxy group as a substituent is treated with a deprotection reaction so that 80-95 mol% of the substituents may be converted to their hydroxyl groups; and that the partially protected polyhydroxystyrene thus obtained is further reacted with vinyl ether so that part of the hydoxy groups may be converted to their acetal groups.