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Mathematical Description of the RAFT Copolymerization of Styrene and Glycidyl Methacrylate Using the Terminal Model.
Tenorio-López, José Alfredo; Benvenuta-Tapia, Juan José; García-Navarro, Norma; Vivaldo-Lima, Eduardo; Champagne, Pascale; Saldívar-Guerra, Enrique.
Afiliação
  • Tenorio-López JA; Facultad de Ciencias Químicas, Universidad Veracruzana (UV), Coatzacoalcos 96535, Mexico.
  • Benvenuta-Tapia JJ; Facultad de Ciencias Químicas, Universidad Veracruzana (UV), Coatzacoalcos 96535, Mexico.
  • García-Navarro N; Facultad de Ciencias Químicas, Universidad Veracruzana (UV), Coatzacoalcos 96535, Mexico.
  • Vivaldo-Lima E; Facultad de Química, Departamento de Ingeniería Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico.
  • Champagne P; Faculty of Engineering and Applied Science, Queen's University, Kingston, ON K7L3N6, Canada.
  • Saldívar-Guerra E; Polymer Synthesis Department, Centro de Investigación en Química Aplicada (CIQA), Saltillo 25294, Mexico.
Polymers (Basel) ; 14(7)2022 Apr 01.
Article em En | MEDLINE | ID: mdl-35406321
A mathematical model for the kinetics, composition and molar mass development of the bulk reversible addition-fragmentation chain transfer (RAFT) copolymerization of glycidyl methacrylate (GMA) and styrene (St), at several GMA molar feed fractions at 103 °C, in the presence of 2-cyano isopropyl dodecyl trithiocarbonate as the RAFT agent and 1,1'-azobis(cyclohexane carbonitrile), as the initiator, is presented. The copolymerization proceeded in a controlled manner and dispersities of the copolymers remained narrow even at high conversions. Experimental data and calculated profiles of conversion versus time, composition versus conversion and molar mass development for the RAFT copolymerization of St and GMA agreed well for all conditions tested, including high-conversion regions. The kinetic rate constants associated with the RAFT- related reactions and diffusion-controlled parameters were properly estimated using a weighted nonlinear multivariable regression procedure. The mathematical model developed in this study may be used as an aid in the design and upscaling of industrial RAFT polymerization processes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Polymers (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: México País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Polymers (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: México País de publicação: Suíça