期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 28, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202104228
关键词
self-assembly; coordination cages; amphiphiles; emulsions; polymerization
资金
- European Research Council (ERC) [683083]
- Deutsche Forschungsgemeinschaft (DFG) [GRK2376, 331085229, 390677874, EXC 2033, 271512359]
- Gefordert durch die Deutsche Forschungsgemeinschaft (DFG) im Rahmen der Exzellenzstrategie des Bundes und der Lander - EXC [390677874, EXC 2033]
- Projekt DEAL
This study introduces a self-assembled coordination cage as a molecular surfactant to stabilize various oil-in-oil emulsions. The cage can also be used for templated polycondensation reactions and guest molecule encapsulation.
Nonaqueous emulsions are crucial for a range of applications based on water-sensitive systems such as controlled polymerizations requiring anhydrous reaction conditions and the stabilization of readily hydrolyzable reagents or pharmacologically active components. However, defined molecular surfactants to stabilize such nonaqueous emulsions are scarce. We introduce a self-assembled coordination cage, decorated with cholesterol functionalities, to serve as a molecular surfactant for various oil-in-oil emulsions of immiscible organic solvents. While the positively charged cage forms the amphiphile's polar moiety, the non-polar cholesterol appendices can bend in a common direction to stabilize the emulsion. Templated by the droplets, polycondensation reactions were carried out to produce microstructured polyurethane and polyurea materials of different particle sizes and morphologies. Further, the amphiphilic cage can encapsulate a guest molecule and the resulting host-guest assembly was also examined as a surfactant. In addition, the aggregation behavior of the amphiphilic cage in an aqueous medium was examined.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据