Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 302, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201700131
Keywords
asymmetric membranes; composite membranes; phase inversion; reaction-induced phase separation
Funding
- King Abdullah University of Science and Technology (KAUST)
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A novel method of preparing skinned asymmetric membranes with two distinctive layers is described: a top layer composed of chemically cross-linked polymer chains (dense layer) and a bottom layer of non-cross-linked polymer chains (porous substructure). The method consists of two simple steps that are compatible with industrial membrane fabrication facilities. Unlike conventional processes to prepare asymmetric membranes, with this approach it is possible to finely control the structure and functionalities of the final membrane. The thickness of the dense layer can be easily controlled over several orders of magnitude and targeted functional groups can be readily incorporated in it.
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