Preparation of Microcapsules Containing Dye Aqueous Solution and Investigation of Release Feature According to Preparation Method

• 作者: Masato Tanaka Natsukaze Saito Yoshinari Taguchi
• 来源期刊: 封装与吸附期刊(英文)
• 学科: 化学
• 关键词: MICROENCAPSULATION METHYLENE Blue Permeability Coefficient Multiple EMULSION Suspension Polymerization Interfacial POLYCONDENSATION Reaction
• 年，卷（期）: 2017,（2）
• 页码范围: 83-94
• 页数: 12页
• 分类号: O6

摘要

Microcapsules containing the dye aqueous solution were prepared with three kinds of preparation methods and the release feature of microcapsules with each preparation method was mainly investigated. As a dye tried to microencapsulate, methylene blue was adopted, because methylene blue aqueous solution was changed in color with light irradiation and utilized in order to check the degree of river pollution. Microencapsulation using multiple emulsion was performed with the suspension polymerization method, the inverse interfacial polycondensation method and the suspension polymerization in parallel with the interfacial polymerization method, respectively. The release feature of microcapsules prepared with each preparation method was estimated with the solute permeability coefficient. It was found that the release feature of dye aqueous solution was different according to the preparation method and could be delicately controlled by microencapsulating with the suspension polymerization in parallel with interfacial polycondensation reaction and forming the polyurethane shell on the surface of the dye aqueous solution droplets.