Interfacial polymerization of reactive block polymers for the preparation of composite ultrafiltration membranes

Myungeun Seo, David Moll, Craig Silvis, Abhishek Roy, Sarah Querelle, Marc A. Hillmyer

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)18575-18579
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Volume53
Issue number48
DOIs
StatePublished - Dec 3 2014

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