Swelling-assisted graft copolymerization of 4-vinyl pyridine on poly(ethylene terephthalate) films using a benzoyl peroxide initiator

Unal H., Sanli O.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.62, sa.8, ss.1161-1165, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 62 Sayı: 8
  • Basım Tarihi: 1996
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1161-1165
  • Gazi Üniversitesi Adresli: Hayır

Özet

Graft copolymerization of 4-vinyl pyridine (4-VP) on poly(ethylene terephthalate) (PET) films using a benzoylperoxide (Bz(2)O(2)) initiator was investigated under different conditions including polymerization time, temperature, monomer concentration, and initiator concentration. Dimethyl sulfoxide (DMSO) was used as swelling agent to promote the incorporation and the subsequent polymerization of 4-VP to PET films. Maximum percent grafting was obtained when the polymerization was carried for a period of two hours at 65 degrees C. Increasing the monomer concentration from 0.2M to 0.8M and Bz(2)O(2) concentration from 1.0 X 10(-3)M to 2.5 X 10(-3)M was accompanied by a significant enhancement in percent grafting. Monomer diffusion on PET films and its effect on the grafting yield were studied and intrinsic viscosities of grafted films were also measured. (C) 1996 John Wiley & Sons, Inc.