Journal
COLLOID AND POLYMER SCIENCE
Volume 286, Issue 12, Pages 1395-1401Publisher
SPRINGER
DOI: 10.1007/s00396-008-1909-8
Keywords
Langmuir-Blodgett; polythiophenes; azobenzene
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Funding
- FAPESP
- CNPq
- IMMP-MCT (Brazil)
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The conductivity and luminescence of conjugated polymers may be combined with the photoisomerization capability of azobenzene materials to achieve unique properties for a variety of applications, particularly if conjugated polymers with azobenzene side chains are processed as nanostructured films. In this study, we report on Langmuir-Blodgett (LB) films of a polythiophene-bearing azobenzene moieties, which displayed photoluminescence, thermochromism, electroactivity, and photoinduced birefringence. The latter three properties were enhanced in the LB films, as compared to spin-coated films of the polyazothiophene, and this has been attributed to differences in film morphology that could be probed with atomic force microscopy.
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