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http://nopr.niscpr.res.in/handle/123456789/23611| Title: | Modification of natural polymers: Part I—Ceric ion initiated graft copolymerization of methyl methacrylate onto Cannabis fibre |
| Authors: | Chauhan, Ghanshyam S Kaur, Inderjeet Misra, B N Singha, AS Kaith, B S |
| Keywords: | Cannabis indica;Cerie ammonium nitrate;Graft copolymerization;Methyl methacrylate;Swelling behaviour;Thermal behaviour |
| Issue Date: | Dec-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Ceric ion initiated graft copolymerization of methyl methacrylate onto Cannabis indica fibre has been carried out. Optimum grafting conditions such as the concentrations of monomer, initiator and nitric acid, amount of water, reaction time and reaction temperature have been evaluated. The grafted copolymers and the ungrafted Cannabis fibre have been characterized by IR spectroscopy, thermal gravimetric analysis and swelling studies in DMF, water and n-butanol. The trend in the swelling behaviour of the grafted samples (DMF > water> n-butanol) is different from that observed for the ungrafted sample- (water > DMF > n-butanol). The grafted samples show improved thermal stability in contrast to ungrafted fibre. The plausible mechanism for grafting reactions is suggested and the explanation for the trends in grafting parameters are given. |
| Page(s): | 269-275 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.24(4) [December 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 24(4) 269-275.pdf | 755.49 kB | Adobe PDF | View/Open |
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