Département de chimie, Université de Montréal, Montréal, Canada.
J Microencapsul. 2012;29(7):636-49. doi: 10.3109/02652048.2012.676092. Epub 2012 Apr 11.
This review highlights the materials, mechanisms and applications of microencapsulation by interfacial polycondensation in different areas. This technology entraps active ingredients inside microcapsules/microspheres, having an average diameter ranging from nanosize to several 100 µ. Polycondensation reactions take place at the boundary of two phases to form the shells of microcapsules or matrix microspheres. The emulsion can be classified into three types: water-in-oil, oil-in-water and oil-in-oil. According to the hydrophilic-lipophilic property of core phase, different active substances, such as proteins, enzymes, insecticides, herbicides, vitamins, catalysts, drugs, essential oils, dyes and phase change materials, have been successfully incorporated into different microcapsules/microspheres. Based on the shell-forming materials, this technology is capable of preparing polyamine, polyurea, polyurethane, polythiourea, polyester, polyepoxide, polyacrylamide and polysiloxane microcapsules. Over the past two decades, microcapsules prepared by interfacial polycondensation have been widely used in carbonless paper, cosmetics, pharmacy, agriculture, energy storage/transfer, thermal insulation/regulation and information and magnetic recording.
这篇综述重点介绍了界面缩聚法在不同领域中用于微胶囊化的材料、机制和应用。该技术将活性成分包埋在微胶囊/微球内，其平均直径从纳米到数百微米不等。缩聚反应在两相边界处发生，形成微胶囊或基质微球的壳。乳液可以分为三种类型：水包油、油包水和油包油。根据芯相的亲水-亲脂性质，不同的活性物质，如蛋白质、酶、杀虫剂、除草剂、维生素、催化剂、药物、精油、染料和相变材料，已成功地被包埋在不同的微胶囊/微球中。根据壳形成材料，该技术能够制备聚胺、聚脲、聚氨酯、聚硫脲、聚酯、聚环氧化物、聚丙烯酰胺和聚硅氧烷微胶囊。在过去的二十年中，界面缩聚法制备的微胶囊已广泛应用于无碳纸、化妆品、制药、农业、储能/传输、隔热/调温以及信息和磁记录领域。
