D. Haddleton, C. Waterson
Dec 3, 1999
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Journal
Macromolecules
Abstract
A range of phenolic esters derived form the esterification of substituted phenols with 2-bromoisobutyryl bromide and 2-chloroisobutyryl chloride have been demonstrated to be effective atom transfer polymerization initiators in conjunction with N-(n-octyl)-2-pyridylmethanimine and copper(I) chloride and bromide. All initiators have been fully characterized. Methoxy, phenyl ether, primary aryl amino, aldehyde, nitro, and benzyl ether functional initiators lead to efficacious atom transfer polymerization without imparting any detrimental effects on the polymerization. Polymerizations have been shown to proceed with excellent first-order kinetics with small amount of termination, as seen by narrow polydispersity indices, often below 1.10. Rates of polymerization are of the of the order of 1 × 10-4 s-1, which gives PMMA of approximately 10 000 g mol-1 after 4 h under typical polymerization conditions. Mn increases linearly with conversion. Polymerization of a range of alkyl methacrylates is demonstrated includ...