Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 242, Issue 1-3, Pages 17-20Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2004.04.057
Keywords
gelatin; hydrolyzed styrene-maleic anhydride copolymer; microcapsule; microstructure; electron microscopy
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Stable, uniform, and spherical microcapsules were prepared from gelatin and a hydrolyzed copolymer of styrene and maleic anhydride (SMA) by complex coacervation. The gelatin/SMA microcapsules were characterized in terms of microstructure, morphologies, thermal stability, and release behavior by scanning electron microscopy (SEM), optical microscopy, and thermogravimetric analysis (TGA). It is demonstrated that the membranes of the microcapsules are formed from nano-sized coacervate droplets resulting from gelatin and hydrolyzed SMA, which leads to a compact membrane structure. (C) 2004 Elsevier B.V. All rights reserved.
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