A comprehensive kinetic mode for high temperature free radical production of styrene/methacrylate/acrylate resins
Loading...
Authors
Wang, Wei
Date
2010-04-29T18:27:00Z
Type
thesis
Language
eng
Keyword
polymerization kinetics , kinetic model , styrene , methacrylate , acrylate , acrylate resin , free radical polymerization
Alternative Title
Abstract
Acrylic resins, synthesized from a mixture of monomers selected from the methacrylate, acrylate and styrene families, are the base polymer components for many automotive coatings due to their excellent chemical and mechanical properties. The low molecular weight polymers with reactive functionalities are made via high-temperature starved-feed free-radical solution semibatch terpolymerization, operating conditions that greatly promote the importance of secondary reactions, such as methacrylate depropagation, and acrylate backbiting, chain scission and macromonomer propagation.
In this work, a generalized model for styrene/methacrylate/acrylate terpolymerization has been developed and formulated in the PREDICI software package and poorly understood high temperature mechanisms have been studied. Unknown rate coefficients for methacrylate depropagation, reactivity of acrylate macromonomer and penultimate copolymerization kinetics were determined via separate kinetic experiments. The generality of the terpolymerization mechanistic model was verified against data obtained under a range of polymerization conditions, and provides an exclusive insight into the kinetic complexity of methacrylate/styrene/acrylate terpolymerization at high temperatures.
Description
Thesis (Ph.D, Chemical Engineering) -- Queen's University, 2010-04-28 19:56:36.906
Citation
Publisher
License
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.