Issue 14, 2015

Properties of some azo-copolyimide thin films used in the formation of photoinduced surface relief gratings

Abstract

Thin free standing films have been obtained by casting from dimethylacetamide solutions of some azo-copolyimides. The dynamo-mechanical and dielectric properties, and the effect of the chemical structure of polymers on the physical properties are investigated. The incorporation of substituted azobenzene groups and hexafluoroisopropylidene units in the macromolecular chain allowed the patterning of the materials under different irradiation conditions. The azo-copolyimide thin films showed high thermal stability, low dielectric constant, good dynamo-mechanical characteristics and uniform surface relief gratings.

Graphical abstract: Properties of some azo-copolyimide thin films used in the formation of photoinduced surface relief gratings

Article information

Article type
Paper
Submitted
10 Nov 2014
Accepted
06 Jan 2015
First published
06 Jan 2015

RSC Adv., 2015,5, 10125-10133

Author version available

Properties of some azo-copolyimide thin films used in the formation of photoinduced surface relief gratings

I. Sava, A. Burescu, I. Stoica, V. Musteata, M. Cristea, I. Mihaila, V. Pohoata and I. Topala, RSC Adv., 2015, 5, 10125 DOI: 10.1039/C4RA14218G

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