Graft polymerization of methacrylamide onto poly(ethylene terephthalate) fibers with benzoyl peroxide as initiator and their characterization

Ongun N., Karakisla M., Aksu L., Sacak M.

MACROMOLECULAR CHEMISTRY AND PHYSICS, cilt.205, sa.15, ss.1995-2001, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 205 Sayı: 15
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1002/macp.200400178
  • Dergi Adı: MACROMOLECULAR CHEMISTRY AND PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1995-2001
  • Anahtar Kelimeler: fibers, graft copolymers, initiators, polyesters, poly(ethylene terephthalate), ACRYLIC-ACID, METHYL-METHACRYLATE, COPOLYMERIZATION, POLYPROPYLENE, ESR
  • Ankara Üniversitesi Adresli: Evet

Özet

The effects of polymerization temperature and time, initiator and monomer concentrations, ratio of water and solvent employed on the grafting of methacrylamide onto poly(ethylene terephthalate) fibers by the use of benzoyl peroxide initiator were studied. The graft yield was observed to increase with temperature and monomer concentration. The highest graft yield was obtained with an initiator concentration of 1 x 10(-2) mol/L. The rate of grafting was proportional to the power 0.48 and 1.6 of the methacrylamide and benzoyl peroxide concentrations, respectively. The overall activation energy for grafting calculated was 42.8 kcal/mol. The thermogravimetric data revealed that the thermal stability of poly(ethylene terephthalate) fibers decreased with grafting.