Kinetics and monomer partitioning during polymerization of vinyl acetate in microemulsions stabilized with AOT and n-butanol

Autor: Juan R. Herrera, Eduardo Mendizábal, Gladis Y. Cortez-Mazatan, Raúl G. López, René D. Peralta, Víctor M. Ovando-Medina
Rok vydání: 2014
Předmět:
Zdroj: Colloid and Polymer Science. 293:655-664
ISSN: 1435-1536
0303-402X
DOI: 10.1007/s00396-014-3479-2
Popis: Vinyl acetate (VAc) was polymerized in microemulsion using sodium bis(2-ethylhexyl) sulfosuccinate (AOT) as surfactant and n-butanol (n-BuOH) as the cosurfactant (1:1, wt/wt) with potassium persulfate (KPS) as initiator. The effects of monomer, surfactant, and initiator concentration, as well as the temperature on the kinetics, particle size, and molar masses were studied. It was observed that polymerization rate increases as monomer, initiator, and temperature increases; however, the opposite was observed as surfactant concentration increases. Average particle diameters (Dp)
Databáze: OpenAIRE