Jump to main content
Jump to site search

Issue 14, 2014
Previous Article Next Article

Novel thermally stable and soluble triarylamine functionalized polyimides for gas separation

Author affiliations

Abstract

A novel series of solution-processable aromatic polyimide membranes with trimethyl-substituted triphenylamine units for gas separation were prepared from a newly synthesized dianhydride, N,N-bis(3,4-dicarboxyphenyl)-2,4,6-trimethylaniline dianhydride (2), and various diamines via one-step high-temperature solution polymerization. The corresponding polyimides derived from structurally related dianhydrides with different pendant groups such as phenyl, naphthyl, and pyrenyl moieties were also prepared for comparison. All the polyimides were readily soluble in many polar solvents and showed useful levels of thermal stability associated with high glass-transition temperatures (Tg, 324–455 °C) and high char yields (higher than 58% at 800 °C in nitrogen). The noncoplanar triphenylamine-containing polyimides IV with pendant trimethyl-phenyl moieties exhibited an effective improvement of gas permeability with a minor decrease in permselectivity.

Graphical abstract: Novel thermally stable and soluble triarylamine functionalized polyimides for gas separation

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Mar 2014, accepted on 29 Apr 2014 and first published on 29 Apr 2014


Article type: Paper
DOI: 10.1039/C4PY00449C
Citation: Polym. Chem., 2014,5, 4219-4226
  •   Request permissions

    Novel thermally stable and soluble triarylamine functionalized polyimides for gas separation

    H. Yen, J. Wu, Y. Huang, W. Wang, K. Lee and G. Liou, Polym. Chem., 2014, 5, 4219
    DOI: 10.1039/C4PY00449C

Search articles by author

Spotlight

Advertisements