论文信息 - Free radical initiation mechanisms in copolymerisation studied by the nitroxide trapping technique

Free radical initiation mechanisms in copolymerisation studied by the nitroxide trapping technique

The initiation mechanism for the radical copolymerization of vinyl acetate with acrylonitrile initiated by t-butoxy radical was investigated using 1,1,3,3-tetramethyl-1,3-dihydroisoindol-2-yoloxyl as a radical trapping agent. Two adducts (diastereoisomers) containing both vinyl acetate and acrylonitrile monomers were isolated. From a kinetic analysis of these and other products over a wide range of conditions, a mechanism involving separate monomer addition, which may be regarded as normal kinetic control of monomer addition, is shown to be most consistent with the observed results

I. D. Jenkins | I. D. Grice | W. Busfield

[1] G. Moad,et al. The philicity of tert-butoxy radicals. What factors are important in determining the rate and regiospecificity of tert-butoxy radical addition to olefins? , 1989 .

[2] E. Rizzardo,et al. The mechanism of initiation in the free radical polymerization of N-vinylcarbazole and N-vinylpyrrolidone , 1989 .

[3] Mj Cuthbertson,et al. The Addition of t-Butoxy Radicals to Halo-olefins , 1985 .

[4] G. Moad,et al. On the regioselectivity of free radical processes ; reactions of benzoyloxy, phenyl and t-butoxy radicals with some α,β-unsaturated esters , 1983 .

[5] E. Rizzardo,et al. A new method for investigating the mechanism of initiation of radical polymerization , 1979 .

[6] P. Bartlett,et al. The Polymerization of Allyl Compounds. III. The Peroxide-induced Copolymerization of Allyl Acetate with Maleic Anhydride1 , 1946 .