S. Tripathi, A. Srivastava
May 1, 2004
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0
Influential Citations
12
Citations
Journal
Journal of Polymer Science Part A
Abstract
Triphenylbismuthonium 1,2,3,4-tetraphenylcyclopentadienylide in 1,4-dioxan initiated radical polymerization of methyl acrylate to ∼30% conversion without gelation because of autoacceleration. The polymer had a viscosity-average molecular weight of 200,000. The kinetic expression was Rpα[I]0.3[M]1.16, that is, the system followed nonideal kinetics because of primary radical termination and degradative chain-transfer reactions. The values of kkt and the energy of activation were computed as 3.12 × 10−5 Lmol−1s−1 and 28 kJ/mol, respectively. The ylide dissociated to form a phenyl radical, which brought about polymerization of methyl acrylate. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 2060–2065, 2004