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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(3) [May 2011] >
| Title: | Homogeneous grafting of PMMA onto cellulose in presence of Ce4+ as initiator |
| Authors: | Tosh, B
Routray, C R |
| Keywords: | Methyl methacrylate (MMA)
Homogeneous medium
N,N–Dimethyl Acetamide/LiCl
Ceric ammonium nitrate (CAN)
DMSO
Grafting
Ring opening
FTIR
Grafting efficiency
Methylene blue
Inhibitor |
| Issue Date: | May-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Poly (methyl
methacrylate) (PMMA) is successfully grafted onto cellulose in homogeneous
medium in N,N-dimethyl acetamide/LiCl solvent system. The method is based upon
ring opening reaction of cellulose with Ce4+ ion. Ceric ammonium
nitrate (CAN) forms free radical on cellulose back bone in presence of DMSO via
ring opening mechanism and PMMA is grafted through homogeneous breaking of the
acrylic double bond. Methylene blue was used as an inhibitor to check the
formation of homopolymer. The graft yield and grafting efficiency was studied by
varying reaction time, temperature, and monomer concentration. The products are
characterized by FTIR and 1H-NMR analysis and a possible reaction
mechanism is deduced. Thermal degradation of the grafted products is also
studied by thermo-gravimetric analysis (TG). |
| Page(s): | 234-243 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(3) [May 2011]
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