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Grafting of acrylamide–methacrylic acid mixture onto poly(ethylene terephthalate) fibers by azobisisobutyronitrile
Author(s) -
Celik Meltem,
Sacak Mehmet
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960124)59:4<609::aid-app6>3.0.co;2-x
Subject(s) - azobisisobutyronitrile , comonomer , grafting , methacrylic acid , polymer chemistry , acrylamide , poly ethylene , materials science , synthetic fiber , fiber , chemical engineering , chemistry , ethylene , nuclear chemistry , polymerization , composite material , polymer , organic chemistry , copolymer , catalysis , engineering
The chemical grafting of acrylamide‐methacrylic acid (AAM‐MAA) mixture onto poly(ethylene terephthalate) (PET) fibers using azobisisobutyronitrile as a chemical initiator was investigated. The use of MAA as a comonomer increased the amount of AAM introduced to the PET fiber up to 33.0%, while the grafting of AAM onto fibers alone gave low graft yields. This synergistic effect was found to be at its highest when an AAM‐MMA mixture having 30 wt % AAM was used. The grafting increased dyeability with both acidic and basic dyes, and increased diameter and decreased the density of the fibers. The thermogravimtric analysis results revealed that the decomposition temperature of the fibers decreased with grafting. The electron micrographs showed that grafting changed the surface morphology of the fiber and a shell‐like heterogeneous structure occurred at the surface at high graft yields. © 1996 John Wiley & Sons, Inc.