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Kinetic Aspects of Styrene Polymerization with an Acyloxyamine
Authors:Afsaneh Nabifar  Neil T Mcmanus  Eduardo Vivaldo-Lima  Alexander Penlidis
Institution:1. Institute for Polymer Research (IPR), Department of Chemical Engineering , University of Waterloo , Waterloo, Ontario, Canada;2. Facultad de Química, Departamento de Ingeniería Química , Universidad Nacional Autónoma de México , México, D.F., México
Abstract:The present paper evaluates largely unstudied kinetic aspects of styrene polymerization with a (relatively new) acyloxyamine over several temperature levels and contrasts these features with regular styrene polymerization and styrene polymerization with TEMPO. These comparisons show that the system behaves rather like regular thermal polymerization of styrene at temperatures between 120–180°C. However, at higher temperatures (> 180°C), acyloxyamine has an initiator-like contribution, giving the rate of polymerization an extra boost while decreasing molecular weights. This is further corroborated by mathematical modeling for both conversion and molecular weight averages.
Keywords:Acyloxyamine  styrene  thermal polymerization  polymerization kinetics
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