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Potassium permanganate/thioureadioxide redox system‐induced grafting of methacrylic acid onto loomstate cotton fabric
Author(s) -
AbdelHafiz S. 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.1995.070581111
Subject(s) - potassium permanganate , polymerization , grafting , methacrylic acid , polymer chemistry , chemistry , permanganate , yield (engineering) , redox , reaction mechanism , materials science , organic chemistry , polymer , composite material , catalysis
Graft polymerization of methacrylic acid (MAA) to loomstate cotton fabric using the KMnO 4 /thioureadioxide system as the initiator was studied under different polymerization conditions. The polymerization reaction was assessed with respect to 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 , thioureadioxide, and MAA as well as liquor ratio, reaction time, and temperature of polymerization. Based on a detailed investigation of these parameters, the optimal condition for grafting is KMnO 4 0.045 g/L, thioureadioxide 0.03 g/L, material to liquor ratio 1 : 30, MAA 100% (owf), temperature 80°C, and time 60 min. A reaction mechanism for the polymerization reaction is also reported. © 1995 John Wiley & Sons, Inc.