Photo-insolubilizable polyvinyl alcohol derivative and its preparation

Abstract

Abstract PURPOSE: To prepare a new polyvinyl alcohol derivative, having high solubility in water and high photo-insolubilization sensitivity, and applicable for photo-insolubilization of enzyme, and also useful as a photoresist, etc., by reacting a polyvinyl alcohol etc. with a styrylquinolium salt. CONSTITUTION: (A) A polyvinyl alcohol or a partially saponified polyvinyl acetate is reacted with (B) a styrylquinolium salt I (R is H, alkyl or aralkyl; X - is anion of strong acid; m is 0 or 1; n is integer 1W6) at room temperature to 100°C to give the desired polymer. Preferably the amount of (B) is 0.2W15mol% on the basis of the vinyl alcohol unit of (A) and the polymerization degree of the polymer is 200W 3,000. X - of the acid catalyst component is preferably a halogen ion, sulfuric acid ion, phosphoric acid ion, p-toluenesulfonic acid ion, etc. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Kunihiro Ichimura

Bibliographic Details