Polymerization of high-solids-content acrylic latexes using a nonionic polymerizable surfactant

Autor:	Jo Grade, J. M. Asua, Esteban Aramendia, María J. Barandiaran, Trevor Graham Blease
Rok vydání:	2002
Předmět:	Polymers and Plastics Organic Chemistry Emulsion polymerization Potassium persulfate Ascorbic acid chemistry.chemical_compound Monomer Polymerization chemistry Polymer chemistry Materials Chemistry Copolymer Methyl methacrylate Acrylic acid
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 40:1552-1559
ISSN:	1099-0518 0887-624X
Popis:	Stable high-solids-content methyl methacrylate/butylacrylate latexes with small particle sizes (in the range of 150–180 nm) were obtained with a nonionic polymerizable surfactant (surfmer). Three percent of surfmer with respect to monomer was proven to be enough for the stabilization of the latexes. The influence of different operational variables on the stabilization of the final latex was analyzed, and the conditions needed to obtain coagulum-free latex were assessed. The inorganic potassium persulfate/sodium metabisulfite initiator system provided better stability than the organic tert-butyl hydroperoxide/ascorbic acid as a result of the end groups. In addition, the feeding of acrylic acid during the second half of the polymerization improved the stability of the final latex. The reduction of the feeding time was effective in the stabilization. Proof of the surfmer incorporation into the particles is presented. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 40: 1552–1559, 2002
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1610f5bf90f1f0a1fe7b2adea769fb53 https://doi.org/10.1002/pola.10236 Zobrazit plný text záznamu Plný text