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, cilt.192, sa.4, ss.847-855, 1991 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 192 Sayı: 4
  • Basım Tarihi: 1991
  • Dergi Adı: MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.847-855
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

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.