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  Photoreactive thin films of azobenzene-derivatized poly(amic acid) and poly(imide) Langmuir-Blodgett-Kuhn multilayer assemblies

Zong, Y., Hees, U., Knoll, W., & Rühe, J. (2002). Photoreactive thin films of azobenzene-derivatized poly(amic acid) and poly(imide) Langmuir-Blodgett-Kuhn multilayer assemblies. Journal of Nonlinear Optical Physics & Materials, 11(4), 367-389.

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 Urheber:
Zong, Y.1, Autor           
Hees, U.1, Autor           
Knoll, Wolfgang1, Autor           
Rühe, Jürgen1, Autor           
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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Schlagwörter: poly(amic acid); poly(imide); Langmuir/Blodgett/Kuhn multilayer assemblies; liquid crystal alignment; command layer; surface plasmon optics; waveguide spectroscopy
 Zusammenfassung: Various poly(amic acid)s with azobenzene-chromophore sidegroups have, been synthesized and structurally and functionally characterized. Their amphiphilic properties allowed us to prepare stable monomolecular layers at the water/air interface of a Langmuir trough, and to transfer these highly organized monolayers to solid supports via the Langmuir-Blodgett-Kuhn deposition protocol. The resulting multilayer assemblies were investigated by surface plasmon- and waveguide-optical techniques, by X-ray reflectometry, and by UV-vis and IR spectroscopies. Thermal imidization of the assemblies resulted in functional poly(imide) multilayers that still could undergo photoisomerization reactions in their azobenzene sidegroups. The kinetic parameters of this trans-cis and cis-trans isomerization, respectively, as well as, the resulting control of the alignment of a liquid crystal in contact to these "command layers" were evaluated.

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Sprache(n): eng - English
 Datum: 2002-12
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Keine Begutachtung
 Identifikatoren: eDoc: 28402
ISI: 000181219500004
 Art des Abschluß: -

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Titel: Journal of Nonlinear Optical Physics & Materials
  Alternativer Titel : J. Nonlinear Opt. Phys. Mater.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 11 (4) Artikelnummer: - Start- / Endseite: 367 - 389 Identifikator: ISSN: 0218-8635