Photochromic sol-gel derived hybrid polymer coatings: the influence of matrix properties on kinetics and photodegradation

• Autorzy: Klukowska A. , Posset U. , Schottner G. , Jankowska-Frydel A. , Malatesta V.
• Języki publikacji: EN

Abstrakty

EN

Photochromic dyes undergo a reversible change in their absorption characteristics upon UV light irradiation. By incorporating such photochromophores into sol-gel derived inorganic-organic hybrid polymers, versatile coatings with a fast photochromic response and high photochromic activity can be obtained. In the present study, the isomerization kinetics of spirooxazine dyes entrapped in hybrid polymer coatings were investigated in situ. The chemical properties of the matrices used were characterised in terms of their inorganic network connectivity (NMR measurements) and paramagnetic properties (EPR spectroscopy). Their photodegradation behaviour was studied by means of artificial weathering.

Słowa kluczowe

EN

photochromic dyes; switching kinetics; sol-gel materials; hybrid polymer

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 3
• Strony: 187--199
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Klukowska A.

• Fraunhofer-Institut Silicatforschung (ISC), Neunerplatz 2, D-97082 Würzburg, Germany

autor

Posset U.

• Fraunhofer-Institut Silicatforschung (ISC), Neunerplatz 2, D-97082 Würzburg, Germany

autor

Schottner G.

• Fraunhofer-Institut Silicatforschung (ISC), Neunerplatz 2, D-97082 Würzburg, Germany

autor

Jankowska-Frydel A.

• Institute of Experimental Physics, Gdańsk University, Wita Stwosza 57, 80-952 Gdańsk, Poland

autor

Malatesta V.

• Current address: Cytec Industries Inc., 1937 West Main Street, 06904 Stamford, Connecticut, USA

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