Documents disponibles écrits par cet auteur

Particle Formation in Vinyl Chloride Emulsion Polymerization. Experimental Study / Hugo M. Vale in Industrial & engineering chemistry research, Vol. 47 n°21 (Novembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p. 8107–8118 Titre : Particle Formation in Vinyl Chloride Emulsion Polymerization. Experimental Study Type de document : texte imprimé Auteurs : Hugo M. Vale, Auteur ; Timothy F. L. McKenna, Auteur Année de publication : 2008 Article en page(s) : p. 8107–8118 Note générale : Chemical engineering Langues : Anglais (eng) Résumé : Particle formation in vinyl chloride emulsion polymerization has been investigated by means of ab initio and seeded experiments. A series of ab initio polymerizations was run in order to obtain reliable data regarding the dependence of the particle number on the emulsifier (SDS and SDBS) concentration, as well as to analyze the effect of the initiator concentration, stirring rate, and monomer-to-water ratio upon the particle number and the polymerization kinetics. Seeded polymerizations carried out at different concentrations of seed latex and surfactant made it possible to quantitatively evaluate the influence of these factors on the onset and extent of secondary particle formation. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0715153 [article] Particle Formation in Vinyl Chloride Emulsion Polymerization. Experimental Study [texte imprimé] / Hugo M. Vale, Auteur ; Timothy F. L. McKenna, Auteur . - 2008 . - p. 8107–8118. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°21 (Novembre 2008) . - p. 8107–8118 Résumé : Particle formation in vinyl chloride emulsion polymerization has been investigated by means of ab initio and seeded experiments. A series of ab initio polymerizations was run in order to obtain reliable data regarding the dependence of the particle number on the emulsifier (SDS and SDBS) concentration, as well as to analyze the effect of the initiator concentration, stirring rate, and monomer-to-water ratio upon the particle number and the polymerization kinetics. Seeded polymerizations carried out at different concentrations of seed latex and surfactant made it possible to quantitatively evaluate the influence of these factors on the onset and extent of secondary particle formation. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0715153

Particle formation in vinyl chloride emulsion polymerization / Hugo M. Vale in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5193–5210 Titre : Particle formation in vinyl chloride emulsion polymerization : reaction modeling Type de document : texte imprimé Auteurs : Hugo M. Vale, Auteur ; Timothy F. L. McKenna, Auteur Année de publication : 2009 Article en page(s) : pp. 5193–5210 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Particle  size  distribution  Vinyl  chloride  monomer  Polymerization Résumé : A mathematical model is developed to help quantify and improve our understanding of the formation of particles and the evolution of the particle size distribution (PSD) in the emulsion polymerization of vinyl chloride monomer (VCM). A special feature of the model is the computation of the coupled radical number and particle size distributions by means of the zero−one−two population balance equations. This approach is shown to be necessary when modeling processes that involve particle nucleation. Preliminary results are presented to illustrate the ability of the model in interpreting experimental data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801406n [article] Particle formation in vinyl chloride emulsion polymerization : reaction modeling [texte imprimé] / Hugo M. Vale, Auteur ; Timothy F. L. McKenna, Auteur . - 2009 . - pp. 5193–5210. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5193–5210 Mots-clés : Particle  size  distribution  Vinyl  chloride  monomer  Polymerization Résumé : A mathematical model is developed to help quantify and improve our understanding of the formation of particles and the evolution of the particle size distribution (PSD) in the emulsion polymerization of vinyl chloride monomer (VCM). A special feature of the model is the computation of the coupled radical number and particle size distributions by means of the zero−one−two population balance equations. This approach is shown to be necessary when modeling processes that involve particle nucleation. Preliminary results are presented to illustrate the ability of the model in interpreting experimental data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801406n