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Grafting of methacrylic acid to loomastate viscose fabric using KMnO 4 /NaClO 2 system
Author(s) -
Hafiz S. A. Abdel,
ElRafie M. H.,
Hassan S. M.,
Hebeish A.
Publication year - 1995
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.1995.070550704
Subject(s) - viscose , polymerization , grafting , methacrylic acid , polymer chemistry , yield (engineering) , cellulose , polymer , materials science , radical polymerization , chemistry , chemical engineering , organic chemistry , composite material , engineering
Graft polymerization of methacrylic acid (MAA) to loomstate viscose fabric (greige fabric) using KMnO 4 /NaClO 2 system was studied. Residual thiocarbonate and/or sizing materials on the fabric as well as presence of NaClO 2 act in favor of primary radical formation which, in turn, accelerate formation of cellulose macroradicals capable of initiating grafting. The polymerization reaction was studied with respect to polymer yield, graft yield, homopolymer, total conversion, and graft efficiency. The magnitude of each of these characteristics was found to depend upon parameters such as concentrations of KMnO 4 , NaClO 2 , and MAA as well as liquor ratio, reaction time, and temperature of polymerization. By and large all these parameters enhance the polymerization process with the exception of the liquor ratio. A reaction mechanism for the polymerization reaction is also reported. © 1995 John Wiley & Sons, Inc.