Parent, J. Scott - Queen's University - Department of Chemical Engineering

研究领域

Chemical Modification of Polymers Advanced Polymer Composites Structure/Property Relationships in Ionomeric Materials Our research program is focused on the chemical modification of polymers for use in high-value engineering applications. Using knowledge of the relationships between polymer structure and end-use performance, the structural inadequacies of polyolefins and elastomers are defined and remedied through chemical modification. Our aim is to develop commercially viable chemistry for the production of advanced polymeric materials. Research projects range from studies of the structure-property relationships of new materials to detailed analyses of reaction kinetics and selectivity. While the focus remains on the development of advanced polymers, model compounds are studied extensively to determine the underlying chemistry of modification processes. Most projects therefore involve organic synthesis, reactive polymer processing, spectroscopic characterization and polymer property assessment.

近期论文

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S.L Bacon, A.J. Daugulis, J.S. Parent, Isobutylene-rich Imidazolium Ionomers for Use in Two-phase Partitioning Bioreactors, Green Chemistry, in press. B.M. Molloy, K.A. Johnson, R.J. Ross, J.S. Parent, Functional Group Tolerance of AOTEMPO-Mediated Peroxide Cure Chemistry, Polymer, 99, 598-604, 2016. M.R. Kleczek, R.A. Whitney, J.S. Parent, Synthesis and Characterization of Thermoset Imidazolium Ionomer Derivatives of Brominated Poly(isobutylene-co isoprene), Reactive and Functional Polymers, 106, 69-75, 2016. S.L Bacon, A.J. Daugulis, J.S. Parent, Effect of polymer molecular weight distribution on solute sequestration in two-phase partitioning bioreactors, Chemical Engineering Journal, 299, 56–62, 2016. C. Twigg, E. Mueller, B.M. Molloy, J.S. Parent, Peroxide-initiated Chemical Modification of Poly(isobutylene-co-isoprene): H-atom Transfer Yields and Regioselectivity, Journal of Polymer Science, Part A: Polymer Chemistry, 54, 3102-3109, 2016. E.C. Peterson, D. Contreras-López, J. Harris, J.S. Parent, and A.J. Daugulis, Two-phase Partitioning Bioreactors: Strategies for organic acid extraction by polymer absorption. Chemical Engineering Journal, 287, 503–510, 2016. S. Bacon, E. Peterson, A.J. Daugulis, J.S. Parent, Impact of thermodynamic affinity, crystallinity and glass transition temperature on the rational selection of polymers for two-phase partitioning bioreactors (TPPBs). Biotechnology Progress, 36, 1500-1507, 2015. J.M. Dakin, K. Vikram Siva Shanmugam, C. Twigg, R.A. Whitney, J.S. Parent, Isobutylene-rich Macromonomers: Dynamics and Yields of Peroxide-Initiated Cross-linking. Journal of Polymer Science, Part A: Polymer Chemistry, 53, 123–132, 2015. Y. Zhang, J.S. Parent, M. Kontopoulou, C.B. Park, Foaming of reactively modified polypropylene: Effects of rheology and coagent type. Journal of Cellular Plastics, 51(5–6), 505–522, 2015. J.M. Dakin, R.A. Whitney, J.S. Parent, Imidazolium Bromide Derivatives of Brominated Poly(isobutylene-co-paramethylstyrene): Synthesis of Peroxide-curable Ionomeric Elastomers, Industrial and Engineering Chemistry Research, 53, 17527–17536, 2014. J. Dafoe, J.S.Parent, A.J Daugulis, "Block copolymers as sequestering phases in two-phase biotransformations: Effect of constituent homopolymer properties on solute affinity," Journal of Chemical Technology & Biotechnology, 89, 1304–1310, 2014. S.L. Bacon, J.S. Parent, A.J. Daugulis, "A framework to predict and experimentally evaluate polymer-solute thermodynamic affinity for two-phase partitioning bioreactor (TPPB) applications," Journal of Chemical Technology & Biotechnology, 89, 948–956, 2014. G.E. Garrett, E. Mueller, D.A. Pratt, J.S. Parent, "Reactivity of polyolefins toward cumyloxy radical:Yields and regioselectivity of hydrogen atom transfer." Macromolecules, 47, 544–551, 2014. B.M. Molloy, D. K. Hyslop, J.S. Parent, "Comparative Analysis of Delayed-Onset Peroxide Cross-linking Formulations," Polymer Engineering and Science, 54, 2645-2653. 2014. Y. Zhang, P. Tiwary, H. Gui, M. Kontopoulou, J.S. Parent, Crystallization Of Coagent-Modified Polypropylene: Effect of Polymer Architecture and Cross-Linked Nanoparticles. Industrial and Engineering Chemistry Research, 53, 15923–15931, 2014. J.R. McNeish, J.S. Parent, R.A. Whitney, "Halogenated poly(isobutylene-co-isoprene): influence of halogen leaving-group and polymer microstructure on chemical reactivity," Canadian Journal of Chemistry 91, 420-427, 2013. A. Ozvald, J.S. Parent, R.A. Whitney, "Hybrid Ionic/Covalent Polymer Networks Derived from Functional Imidazolium Ionomers,"Journal of Polymer Science, Part A: Polymer Chemistry 51, 2438–2444, 2013. D.K. Hyslop, J.S. Parent, "Dynamics and Yields of AOTEMPO-mediated Polyolefin Cross-linking," Polymer 54, 84-89, 2013. D.K. Hyslop, J.S. Parent, "Functional Nitroxyls for use in Delayed-onset Polyolefin Cross-linking," Macromolecules 45, 8147-8154, 2012. K. Vikram Siva Shanmugam, J.S. Parent, R.A. Whitney, "Design, Synthesis and Characterization of Bismaleimide Co-curing Elastomers," Industrial and Engineering Chemistry Research 51, 8957-8965, 2012. K. Vikram Siva Shanmugam, J.S. Parent, R.A. Whitney, "C-H Bond Addition and Copolymerization Reactions of N-Arylmaleimides: Fundamentals of Coagent-assisted Polymer Cross-linking," European Polymer Journal 48, 841-849, 2012. J.S. Parent, M. Capela, J.T. Dafoe, A.J. Daugulis, "A First Principles Approach to Identifying Polymers for Use in Two-Phase Partitioning Bioreactors," Journal of Chemical Technology & Biotechnology 87, 1059-1065, 2012. J.S. Parent, A. Porter, M. Klezcek, R.A. Whitney, "Imidazolium Bromide Derivatives of Poly(isobutylene-co-isoprene): A New Class of Elastomeric Ionomers," Polymer 52, 5410-5418, 2011. J. S. Parent, S.M. Malmberg, R.A. Whitney, "Auto-catalytic Chemistry for the Solvent-free Synthesis of Isobutylene-rich Ionomers,"Green Chemistry 13, 2818-2824, 2011. B.I. Chaudhary, J.M. Cogen, J.S. Parent, "Thermal Analyses of Organic Powders Made From Precipitation Polymerization of Triallyl Monomers," Journal of Thermal Analysis and Calorimetry 105, 279-285, 2011.