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Compared properties of polyimides containing pendant azobenzene groups

I. SAVA1,* , A. BURESCU1, M. BRUMA1

Affiliation

  1. ”Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41A, 700487, Iasi, Romania

Abstract

Two series of aromatic polyimides containing pendant azobenzene groups have been investigated. One series contains isopropylidene bridge and the other series contains hexafluoroisopropylidene bridge in the dianhydride segment. These azo-polyimides have been studied by using thermal analysis, molecular modeling and spectral methods (UV, FTIR). The photochromic behavior, determined by the trans-cis isomerization process of azo-groups, in solution and in solid state, was also evaluated..

Keywords

Azo-polyimides, Photochromic behavior, Thermal stability.

Submitted at: Nov. 12, 2009
Accepted at: Feb. 18, 2010

Citation

I. SAVA, A. BURESCU, M. BRUMA, Compared properties of polyimides containing pendant azobenzene groups, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 309-314 (2010)