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http://nopr.niscpr.res.in/handle/123456789/22922| Title: | Synthesis of polymethylmethacrylate by using triphenybis-muthoniumylide : Kinetics & mechanism |
| Authors: | Bajpai, Radha Srivastava, A K |
| Issue Date: | Jul-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The polymerization of methylmethacrylate initiated by triphenyl- bismuthonium 1,2,3,4-tetraphenylcyclopentadienylide in benzene follows ideal radical kinetics. The activation energy (Ea) and k2 p/kt values were 76 KJ mol-1 and 1.06×10-1 L mol-1s-1, respectively. The scanning electron microscopy and qualitative analysis shows that the little amount of bismuth has trapped in polymer matrix. The presence of 6 hyperfine lines in E.S.R. spectrum indicate that the system follows free radical polymerization and the initiation is brought about by phenyl radical. |
| Page(s): | 301-306 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.08(4) [July 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 8(4) 301-306.pdf | 877.87 kB | Adobe PDF | View/Open |
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