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Graft polymerization of methyl methacrylate onto guar gum with ceric ammonium sulfate/dextrose redox pair
Author(s) -
Chowdhury P.,
Samui S.,
Kundu T.,
Nandi M. M.
Publication year - 2001
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.2214
Subject(s) - ceric ammonium nitrate , grafting , copolymer , guar gum , polymer chemistry , thermogravimetric analysis , methyl methacrylate , polymerization , fourier transform infrared spectroscopy , chemistry , materials science , nuclear chemistry , guar , organic chemistry , chemical engineering , polymer , biochemistry , engineering
The effect of different reaction conditions on the grafting of methyl methacrylate (MMA) onto guar gum (GG) has been studied in detail. The grafting efficiency was optimal under the following conditions: MMA at 1.13 mol/L; ceric ammonium sulfate at 6.32 × 10 −3 mol/L; dextrose monohydrate at 2.428 × 10 −3 mol/L; GG at 4 g/L; temperature at 50°C; and time at 210 min. Fourier transform infrared spectroscopy was used for the confirmation of copolymer formation. Thermogravimetric analysis of GG and a representative graft copolymer were studied. A probable mechanism of grafting has been suggested. The biodegradability of the resulted copolymer was evaluated. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3520–3525, 2001