New crosslinking method of polyamide-imide membranes for potential application in harsh polar aprotic solvents

S.M. Dutczak, F.P. Cuperus, F.P. Cuperus, Matthias Wessling, Dimitrios Stamatialis

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)

Abstract

We report for the first time successful crosslinking of polyamide–imide (Torlon®) based membranes using di-isocyanates. The crosslinked membranes are resistant to N-methyl pyrrolidone (which is solvent of the non-crosslinked membranes) and have very good mechanical properties. In contrast to the state-of-the-art polyimide crosslinked membranes, the created covalent bond is expected to be thermally stable enabling applications at elevated temperatures. The transport characteristics (permeance and molecular weight cut off – MWCO) of the crosslinked membranes are changed in comparison to non-crosslinked ones. This suggests that the crosslinking process could be used to tailor these characteristics
Original languageEnglish
Pages (from-to)142-146
JournalSeparation and purification technology
Volume102
DOIs
Publication statusPublished - 2013

Keywords

  • IR-86773
  • METIS-293896

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