Design and synthesis of a fluoro-silane amine monomer for novel thin film composite membranes to dehydrate ethanol via pervaporation

Jian Zuo, Tai Shung Chung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

A novel hybrid organic-inorganic amine monomer has been designed and synthesized to prepare thin film composite (TFC) membranes for ethanol dehydration via pervaporation. Different from the conventional amine monomer, m-phenylenediamine (MPD), used for interfacial polymerization, the new monomer was molecularly designed to sandwich an inorganic component nonafluorohexylmethyldichloro silane (ClSi) between two MPD molecules. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectrometry were used to characterize and verify the chemical structures of the new monomer and the polyamide film. As a result, the advantages of polymeric and inorganic materials are effectively integrated in the newly developed TFC membranes, and these membranes exhibit a superior pervaporation separation performance as compared to most reported membranes in the literature for ethanol dehydration. Their best pervaporation performance shows a flux of 1.9 kg m-2 h-1 and a separation factor of 108 for the dehydration of the 85/15 wt% ethanol-water mixture at 50°C. These novel TFC membranes show great potential to compete with commercially available membranes.

Original languageEnglish (US)
Pages (from-to)9814-9826
Number of pages13
JournalJournal of Materials Chemistry A
Volume1
Issue number34
DOIs
StatePublished - Sep 14 2013
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Design and synthesis of a fluoro-silane amine monomer for novel thin film composite membranes to dehydrate ethanol via pervaporation'. Together they form a unique fingerprint.

Cite this