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Hexavalent‐chromium‐initiated graft copolymerization of methyl methacrylate onto cellulose
Author(s) -
Samal Rajani K.,
Satrusallya S. C.,
Sahoo P. K.
Publication year - 1984
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.1984.070290130
Subject(s) - copolymer , polymer chemistry , methyl methacrylate , grafting , monomer , cellulose , polymerization , hexavalent chromium , perchloric acid , chemistry , materials science , chromium , methacrylic acid , nuclear chemistry , organic chemistry , polymer
Graft copolymerization of methyl methacrylate (MMA) onto cotton–cellulose has been carried out using hexavalent chromium Cr(VI) as initiator. Aqueous‐methanolic solution of perchloric acid has been chosen as the reaction medium. The effect of monomer, initiator, acid, reaction medium, and temperature on the graft percentage has been found out. The reactions have also been carried out in the presence of polymerization, inhibitors, and retarders, such as hydroquinone and transition metal salts like CuSO 4 , FeCl 3 , etc. The grafted samples, after exhaustive separation of homopolymers and purification, were subjected to various chemical, mechanical, and thermal testings. The results of various analyses have been compared with the reference, and the improvement in the graft has been evaluated. A suitable mechanism for the grafting processes has been suggested, in accordance with the experimental results.