Preparation of Cross-Linked Microcapsules Entrapping Inorganic Salt by In-situ Polymerization in (W/O/W) Emulsion System

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

HIROMITSU UENO²  KOICHIRO SHIOMORI²  YOSHINOBU KAWANO²  YASUO HATATE¹  SHIRO KIYOYAMA² 

[1] Department of Applied Chemistry and Chemical Engineering, Kagoshima University;Department of Applied Chemistry, Miyazaki University

关键词: Cross-Linked Microcapsules;    In-situ Polymerization;    (W/O/W) Emulsion;    Entrapment Efficiency;    Porous Particles;   

DOI  :  10.1252/jcej.34.36

来源: Maruzen Company Ltd

【 摘 要 】

References(6)Cited-By(9)Cross-linked microcapsules entrapping ascorbic acid magnesium salt as a core material are prepared by in-situ copolymerization of styrene and divinylbenzene in a (W/O/W) emulsion system. The effects of the preparation conditions of the microcapsules on the capsule morphologies, the entrapment efficiency and release profiles of the core material are investigated. The entrapment efficiency of the core material is improved by lowering the volume fraction of the dispersion phase in the (W/O) emulsion and adding the salt to the outer aqueous phase when tricalcium phosphate is used as the dispersion stabilizer. Both the entrapment efficiency of the core material and the internal morphologies of the microcapsules affect the release profiles of the core material.

【 授权许可】

Unknown