Grafting of methacrylic acid onto poly(ethylene terephthalate) fibers using azobisisobutyronitrile

Celik M., Sacak M.

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, vol.A33, no.2, pp.191-202, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: A33 Issue: 2
  • Publication Date: 1996
  • Doi Number: 10.1080/10601329608010862
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.191-202
  • Keywords: graft copolymerization, poly(ethylene terephthalate), fibers, methacrylic acid, azobisisobutyronitrile, POLY(ETHYLENE-TEREPHTHALATE) FIBERS, ACRYLIC-ACID, METHYL-METHACRYLATE, BENZOYL-PEROXIDE, COPOLYMERIZATION, MONOMERS, POLYMERIZATION, POLYESTER
  • Ankara University Affiliated: Yes


Poly(ethylene terephthalate) fibers were grafted with methacrylic acid using azobisisobutyronitrile. The graft yield was observed to increase between 60 and 90 degrees C and reached 32% at 90 degrees C. An increase in monomer concentration increased the graft yield. The optimum concentration for initiator was found to be 3.0 x 10(-3) mol/L. Grafting decreased the density and increased the diameter of the fiber. Moisture regain and dyeabilities of the fibers with basic dyes increased due to -COOH groups introduced into the fiber structure through grafting. However, grafting resulted in a decrease in the decomposition temperatures of fibers. Micrographs revealed that the homogeneous appearance of the fiber surface changed with an increasing degree of grafting, and the surface took on a shell-like appearance at high graft yields.