Kinetics and mechanism of polymerization of methyl methacrylate initiated by stibonium ylide |
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| Authors: | A. K. Srivastava and Ajey Kumar Chaurasia |
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| Affiliation: | (1) Department of Chemistry, H B Technological Institute, 208002 Kanpur, India |
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| Abstract: | Homopolymerization of methyl methacrylate (MMA) was carried out in the presence of triphenylstibonium 1,2,3,4-tetraphenyl-cyclopentadienylide as an initiator in dioxane at 65°C±0·l°C. The system follows non-ideal radical kinetics (R p ∝ [M]1·4 [I]0·44 @#@) due to primary radical termination as well as degradative chain-transfer reaction. The overall activation energy and average value ofk 2 p /k t were 64 kJmol−1 and 0.173 × 10−3 1 mol−1 s−1 respectively |
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| Keywords: | Triphenylstiboniumylide methyl methacrylate non-ideal radical kinetics mechanism |
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