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http://nopr.niscpr.res.in/handle/123456789/18469| Title: | Synthesis, characterization and reactivity ratios of co-polymers derived from 4-nitrophenyl methacrylate and butyl methacrylate |
| Authors: | Thamizharasi, S Gnanasundaram, P Balasubramanian, S |
| Issue Date: | Mar-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Poly (NPNA) has been synthesized from 4-nitrophenylmethacrylate (NPMA) in 2-butanone using BPO as a free radical initiator. Copolymers of NPMA and BMA [poly(NPMA-co-BMA)] have also likewise been obtained. The polymers have been characterized by IR, 1H NMR and 13C NMR spectral studies. The weight average molecular weights of the polymers lie in the range (4.1-5 .2) ×104 while the number average molecular weights are found to be in the range (2-2.8) ×104. The monomer reactivity ratios for NPMA-BMA copolymers and Q-e values for NPMA have been determined. TG and DSC studies indicate a random arrangement for the copolymers with thermal decomposition occurring in two stages. |
| Page(s): | 288-292 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.40A(03) [March 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 40A(3) 288-292.pdf | 1.04 MB | Adobe PDF | View/Open |
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