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FT - IR analysis on polyimide selective membranes

E. EFTIMIE TOTU1,* , E. RUSE1, R. GÂRDEA1, A. GRIGORESCU1

Affiliation

  1. Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Str. Polizu 1-4, 1 Bucharest, România

Abstract

In this work is reported a FT - IR analysis performed both on polyimide polymeric matrix and on polyimide selective membranes. Through the FT-IR study done it was shown that the water from the aqueous electrolyte solution acts on polyimide completing its imidization. Also, it was put in evidence that water molecules exists absorbed on the membrane’s surface. The result complies with other experimental results previously obtained by performing a.c. impedance analysis and thermal analysis.

Keywords

Polyimide polymeric matrix, FT-IR analysis, Imidizing effect of water, Membrane.

Citation

E. EFTIMIE TOTU, E. RUSE, R. GÂRDEA, A. GRIGORESCU, FT - IR analysis on polyimide selective membranes, Optoelectronics and Advanced Materials - Rapid Communications, 2, 7, July 2008, pp.442-445 (2008).

Submitted at: June 25, 2008

Accepted at: July 8, 2008