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http://nopr.niscpr.res.in/handle/123456789/46769| Title: | Copolymerization of 4-vinylpyridine and styrene initiated by β-picolinium-p-chlorophenacylide |
| Authors: | Vasishtha, (Miss) Rita Srivastava, A K |
| Issue Date: | Aug-1989 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The radical copolymerization of styrene and 4-vinylpyridine, initiated by β-picolinium-p-chlorophenacylide (β-PCPY) in dimethyormamide (DMF) under nitrogen blanket at 60°C for 2 hr, has been studied dilatometrically. The various kinetic parameters such as rate of polymerization(RP), order of reaction (s) in [monomers]and [initiator] have been evaluated. he energy of activation( E) and k /kt values for the present system have been evaluated as 16.5 kJ mol-1 and 5.0 x 10-2 dm-3 mol-1 s-1, respectively. The reactivity ratios have been calculated as r1(4-vinylpyridine) = 0.80 and r2(styrene) = 0.90. |
| Page(s): | 705-706 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.28A(08) [August 1989] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 28A(8) 705-706.pdf | 1.29 MB | Adobe PDF | View/Open |
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