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Grafting onto wool fibers: Graft copolymerization of methyl methacrylate onto wool fibers initiated by KHSO 5 /Fe(III) couple
Author(s) -
Giri Gitisudha,
Samal Rajani K.
Publication year - 1991
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/app.1991.070420830
Subject(s) - grafting , copolymer , wool , methyl methacrylate , formic acid , polymer chemistry , materials science , aqueous solution , fiber , aqueous medium , potassium , nuclear chemistry , chemistry , composite material , polymer , organic chemistry , metallurgy
Graft copolymerization of methyl methacrylate (MMA) onto wool fibers has been carried out in an aqueous medium under deaerated condition initiated by potassium monopersulphate (KHSO 5 /Fe(III) system, at varying concentration of the reactants and temperature. The effect of various salts and organic solvents on the extent of grafting has also been studied. Maximum graft percentage of 210.8% was obtained in 4 h at 40°C with the concentration of MMA (0.46 M ), KHSO 5 (0.0195 M ), Fe(III) (1.25 × 10 −4 M ) in the presence of 50% formic acid. Various improved properties of the grafts have been studied and compared with the parent fiber.