GRAFTING OF ACRYLONITRILE TO POLY(STYRENE-CO-ACRYLONITRILE) BY TRANSFORMATION WITH A TITANIUM CATALYST


MENCELOGLU Y., GUNGOR A., BAYSAL B.

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS, vol.192, no.4, pp.847-855, 1991 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 192 Issue: 4
  • Publication Date: 1991
  • Title of Journal : MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Page Numbers: pp.847-855

Abstract

Poly(styrene-co-acrylonitrile)-graft-polyacrylonitrile graft copolymers were prepared using a mixed (free-radical/anionic) mechanism technique. For this purpose, poly(styrene-co-acrylonitrile) random copolymers which contain different amounts of acrylonitrile segments were regarded as saturated high-molecular-weight nitrile compounds and were allowed to react with tetrakis(dimethylamino)titanium. By this treatment pendant nitrile groups were transformed to organometallic active sites. These active groups lead to the polymerization of acrylonitrile via an anionic insertion process. Polyacrylonitrile grafts were grown on the poly(styrene-co-acrylonitrile) backbone.