Microcapsules from styrene-maleic anhydride copolymers:: study of morphology and release behavior

被引：22
|
作者：
Shulkin, A [1 ]
Stöver, HDH [1 ]
机构：
[1] McMaster Univ, Dept Chem, Hamilton, ON L8S 4M, Canada
来源：
JOURNAL OF MEMBRANE SCIENCE | 2002年 / 209卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
microcapsules; styrene-maleic anhydride; study of morphology;
D O I：
10.1016/S0376-7388(02)00349-6
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Both microcapsules and matrix particles were formed by interfacial polycondensations of styrene-maleic anhydride (SMA) copolymers and polyamines in oil-in-water (o/w) suspension systems. The morphologies formed depended on composition, molecular weight and loading of the styrene-maleic anhydride copolymer, as well as on amine partitioning and on the rate of amine addition. The organic phase was comprised of mixtures of ethyl acetate (good solvent) and dodecyl acetate (non-solvent). Dodecyl acetate served both as co-solvent, and as a model compound for controlled release of insect sex pheromones. The dependence of the release characteristics of the particles on the morphology is discussed as well. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：433 / 444
页数：12
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