权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Preparation and development of functional microcapsules consisting of porous polymer as shell material

以多孔聚合物为壳材料的功能微胶囊的制备与开发

基本信息

批准号：
03555201
负责人：
HATATE Yasuo
金额：
$ 3.2万
依托单位：
KAGOSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

项目摘要

(1)Preparation and development of extraction microcapsules The functional microcapsules extracting propionic acid in aqueous solution were prepared by in situ polymerization processing under the condition of monomer concentration = 1.85 - 3.55M,, divinylbenzene/styrene ratio = 0.1 - 0.4 and stirring speed = 400 - 1200rpm. Core solution is n-dodecane of tri-n-octyl amine.The microcapsules containing tri-n-octyl amine effectively extracted propionic acid in aqueous solution. Furthermore, extraction equilibria in the microcapsule system agreed with the results in the liquid-liquid system. The rate-determining step was the pore diffusion through the porous membrane of microcapsules. The extraction rate was variable by changing monomer concentration, divinylbenzene/styrene ratio and average diameter of microcapsules.(2)Preparation and development of microcapsule tonerThe research has been carried out to clarify the following two points. The first is that microcapsule toner having monodispersed diameter is prepared by SPG membrane emulsification method. The last is that leakage of core solution through microcapsule membrane is prevent by the formation of interfacial polymerization membrane after in situ polymerization. As the results of the study mentioned above, monodispersed microcapsule toner which diameter is 5 to 10mum could be prepared by SPG membrane emulsification method. Microcapsule toner having double membrane by interfacial polymerization and in situ polymerization is seemed to prevent the leakage of core solution. Moreover, it is clarified that polyamide membrane by interfacial polymerization is better electrostatic capacity than polyester membrane by interfacial polymerization.

（1）萃取微胶囊的制备与开发在单体浓度为1.85 - 3.55M、二乙烯基苯/苯乙烯比为0.1 - 0.4、搅拌速度为400 - 1200 rpm的条件下，采用原位聚合法制备了萃取丙酸水溶液的功能微胶囊。芯液为正十二烷或三正辛胺，含三正辛胺的微胶囊能有效萃取水溶液中的丙酸。此外，微胶囊体系中的萃取平衡与液-液体系中的结果一致。速率控制步骤是通过微胶囊多孔膜的孔扩散。通过改变单体浓度、二乙烯基苯/苯乙烯比和微胶囊平均粒径，可以改变萃取率。（2）微胶囊调色剂的制备与开发本研究主要针对以下两个方面进行研究。第一，采用SPG膜乳化法制备了粒径单分散的微胶囊墨粉。三是原位聚合后形成界面聚合膜，阻止了芯液通过微胶囊膜的渗漏。研究结果表明，SPG膜乳化法可以制备粒径为5 ~ 10 μ m的单分散微胶囊墨粉。通过界面聚合和原位聚合制备的双层膜微胶囊墨粉似乎可以防止芯液的泄漏。此外，还阐明了界面聚合法制备的聚酰胺膜比界面聚合法制备的聚酯膜具有更好的静电容量。