Compared properties of polyimides containing pendant azobenzene groups

Compared properties of polyimides containing pendant azobenzene groups

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, molecul...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials Vol. 12; no. 2; pp. 309 - 314
Main Authors: Sava, I, Burescu, A, Bruma, M
Format: Journal Article
Language:English
Published: 01-02-2010
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Summary: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 transcis isomerization process of azo-groups, in solution and in solid state, was also evaluated.
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ISSN:1454-4164