OPTIMIZATION OF THE REACTION OF PHTHALIC ANHYDRIDE WITH P₄S₁₀

M.Huskiæ, D.Vanderzande, J.Gelan,

National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia. Institute for Material Research, Division Chemistry, Limburgs Universitair Centrum, Universitaire Campus, Gebouw D, B-3590 Diepenbeek, Belgium.

Abstract

Polyisothianaphthene can be synthesized by reaction of phthalic anhydride with P₄S₁₀. To make the reaction economically, as well as ecologically acceptable it was necesary to increase the yield of PITN. Therefore, the influence of reaction parameters such as reaction time, quantity of xylene and catalyst were investigated. Changing these parameters a yield of 85% was achieved what is almost double the value achieved in previous experiments