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Stable Free Radical Polymerization of Styrene: Controlling the Process with Low Levels of Nitroxide

1997; American Chemical Society; Volume: 30; Issue: 7 Linguagem: Inglês

10.1021/ma961510+

1520-5835

Paula J. MacLeod, Richard P. N. Veregin, Peter G. Odell, Michael K. Georges,

Polymer Surface Interaction Studies

It is shown that the polydispersity and conversion in the stable free radical polymerization of styrene can be tuned by varying the 2,2',6,6'-tetramethylpiperidin-1-oxy/benzoyl peroxide ratio from 1.1:1 to 0.5:1. There is a self-correcting mechanism in the stable free radical polymerization of styrene that adjusts the number of growing chains and regardless of the initial initiator/nitroxide level the system moves toward and equilibrium concentration of free nitroxide