Study of multivesiculated polyester particles synthesis by double emulsion process

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Ângela Dias (Autor) FEUP; Joana Fidalgo (Autor) FEUP; João Machado (Autor) Outra; Jorge Moniz (Autor) Outra; Adélio M. Mendes (Autor) FEUP; Fernão D. Magalhães (Autor) FEUP

Revista

Título: European Polymer Journal

Vol. 49 Nº 3

Páginas: 664-674

ISSN: 0014-3057

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

ISI Web of Science

Scopus - 6 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Projetos Associados

PTDC/EQU-EQU/112151/2009 - Sistema microfluído para síntese de partículas vesiculadas

Outras Informações

ID Authenticus: P-005-2W6

DOI: 10.1016/j.eurpolymj.2013.01.004

Abstract (EN): This work studies the synthesis of multivesiculated particles (MVPs) from a w/o/w double emulsion comprising water and unsaturated polyester dissolved in styrene. These particles can be used as opacifying agents in paint formulations, due to light refraction within the air-containing voids, after water evaporation. The effect of some key variables was analyzed: time of dispersion and concentrations of added amine, polyester and protective colloids. The final products were characterized in terms of particle size distribution, vesicle morphology and dry film opacity. All the studied variables were shown to play a role in the quality of vesiculation. The underlying mechanisms were proposed, allowing for a better understanding of this sparsely studied process.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11