Study of multivesiculated polyester particles synthesis by double emulsion process

• Type: Article in International Scientific Journal
• Date: 2013

Authors

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

Journal

Title: European Polymer Journal

Vol. 49 No. 3

Pages: 664-674

ISSN: 0014-3057

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

ISI Web of Science

Scopus - 6 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Associated Projects

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11