Please use this identifier to cite or link to this item: doi:10.22028/D291-24448
Title: Preparation and photochromic properties of dye-doped aluminosilicate ORMOCER gels and coatings
Author(s): Hou, Lisong
Hoffmann, Bernd
Mennig, Martin
Schmidt, Helmut K.
Language: English
Year of Publication: 1994
OPUS Source: Journal of sol gel science and technology. - 2. 1994, 1/3, S. 635-639
SWD key words: Photochromie
DDC notations: 620 Engineering and machine engineering
Publikation type: Journal Article
Abstract: Aluminosilicate and ORMOCER gels and coatings containing photochromic dyes, 1, 3-dihydro-1, 3, 3-trimethylspiro-[2H-indole-2, 3'-[3H]-naphth-[2, 1-b][1, 4]-oxazine] (SO) and 1', 8a'-dihydro-2', 3'-dimethoxycarbonyl-spiro [fluorene-9, 1'-indolizine] (DHI), were prepared by the sol-gel method and the photochromic activity was monitored in the course of the sol-wetgel-xerogel transformation. The photochromic activity of the aluminosilicate gels decreases rapidly and even vanishes in the wetgel-xerogel stage while that of ORMOCER gels and coatings levels off in the early wetgel-xerogel stage at a reasonably high photochromic intensity with the colour-fading speed similar to that in ethanol and the photostability being considerably improved. The experimental results are discussed in terms of the matrix effect on photochromism of organic dyes.
Link to this record: urn:nbn:de:bsz:291-scidok-27598
Date of registration: 11-Mar-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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