Interfacial Polymerization of Reactive Block Polymers for the Preparation of Composite Ultrafiltration Membranes

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Interfacial polymerization of an acid chloride-containing block polymer and a multivalent amine in the presence of a macroporous support was explored as a means to generate a nanoporous thin film composite (TFC) membrane potentially useful for ultrafiltration. When polylactide-b-poly(styrene-co-vinylbenzoyl chloride) (PLA-b-P(S-co-VBC)) in an organic phase and m-phenylenediamine (MPD) in an aqueous phase were used as the reactive block polymer and the amine, respectively, a block polymer thin film was successfully formed on a polysulfone support. This nanostructured film could be converted into a nanoporous layer by subsequent PLA etching under mild basic conditions. While most organic solvents used to dissolve PLA-b-P(S-co-VBC) damaged the support and decreased permeability of the resulting membrane, use of a mixture of methyl isobutyl ketone and acetonitrile produced a TFC membrane with high permeability.
Publisher
AMER CHEMICAL SOC
Issue Date
2014-12
Language
English
Article Type
Article
Citation

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.53, no.48, pp.18575 - 18579

ISSN
0888-5885
DOI
10.1021/ie5032259
URI
http://hdl.handle.net/10203/193882
Appears in Collection
NT-Journal Papers(저널논문)
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