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Super-enhanced particle nucleation in styrene emulsion polymerization in the presence of sodium styrene sulfonate.
Farias-Cepeda, Lorena; Herrera-Ordonez, Jorge; Hernandez-Martinez, Angel R; Estevez, Miriam; Rosales-Marines, Lucero.
Afiliación
  • Farias-Cepeda L; Centro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna 140, San José de los Cerritos, Saltillo, Coah. CP 25294, Mexico.
  • Herrera-Ordonez J; Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM) Campus Juriquilla, Blvd. Juriquilla 3001, Juriquilla, Querétaro, Qro. CP 76230, Mexico. Electronic address: jorge_ho67@hotmail.com.
  • Hernandez-Martinez AR; Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM) Campus Juriquilla, Blvd. Juriquilla 3001, Juriquilla, Querétaro, Qro. CP 76230, Mexico.
  • Estevez M; Centro de Física Aplicada y Tecnología Avanzada (CFATA), Universidad Nacional Autónoma de México (UNAM) Campus Juriquilla, Blvd. Juriquilla 3001, Juriquilla, Querétaro, Qro. CP 76230, Mexico.
  • Rosales-Marines L; Universidad Autónoma de Coahuila, Facultad de Ciencias Químicas, Blvd. V. Carranza e Ing. José Cárdenas V., Saltillo, Coahuila C.P. 25280, Mexico.
J Colloid Interface Sci ; 500: 126-132, 2017 Aug 15.
Article en En | MEDLINE | ID: mdl-28407596
The styrene (St) emulsion polymerization using Aerosol MA80 as surfactant and in the presence of sodium styrene sulfonate (NaSS) was studied. The effect of NaSS content was assessed using MA80 concentrations below and at the critical micellar concentration. It was found that at the higher NaSS and MA80 contents, the number of particles (N) reaches a maximum of the order of 1017particles/cm3 water, a huge value that has never been reported. In this work an explanation for this super-enhanced particle nucleation phenomenon is proposed. Such hypothesis is based on the role of St-NaSS oligomers formed in the aqueous phase and their synergy with MA80 molecules to provide colloidal stability to the system. The proposal seems to be consistent with the experimental data obtained for the evolution of monomer conversion, N, particles size distribution and the wideness of this latter as well as with a theoretical estimation of the N.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2017 Tipo del documento: Article País de afiliación: México Pais de publicación: Estados Unidos
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2017 Tipo del documento: Article País de afiliación: México Pais de publicación: Estados Unidos