A Bridge Spanning Microscopic to Macroscopic Assembly : Application of the Technique of Polymerization of Concentrated Emulsion

作者：Feng Yanyan; Jin Ming; Wan Decheng^*

来源：Progress in Chemistry, 2016, 28(11): 1658-1663.

DOI：10.7536/PC160701

• high internal phase emulsion
• open-cellular material
• dendritic amphiphile
• self-assembly
• surface functionalization
• catalysis
• water treatment

Open-cellular materials can be obtained by polymerization of concentrated emulsion (high internal phase emulsion: HIPE) (polyHIPE), by which nano-objects can be assembled at macroscopic scale, resulting in ordered surface, and the material is producible in large scale. However, earlier polyHIPE technique just provides a porous framework because the small surfactants can just serve as stabilizers but cannot serve as a surface modifier. Postmodification of such polyHIPE usually appears to be tedious, arising from the inert matrix and the nature of a heterogeneous reaction. Recently, certain breakthrough in surface functionalization of polyHIPE occurs (1) pickering stabilizing particles are tailored with surface chemistry; (2) amphiphilic block copolymers are used in place of the readily leachable small surfactant for direct preparation of surface-functionalized polyHIPE; (3) dendritic amphiphile based on hyperbranched polymers are used to one-pot prepare polyHIPE with active-groups dictated surface; (4) metal nanoparticle-dendritic amphiphile nanocomposites are used as stabilizer to prepare polyHIPE with metal nanoparticle-dictated surface. The polyHIPEs are of large size, ready separation and good recycling, high specific surface area, structured surface, thus are highly potential in supramolecular water treatment, low-leaching catalyst, etc.

• 出版日期2016-11
• 单位同济大学