Title: Singlet oxygen generation using PDMS occluded dyes
Authors: van Laar, FMPR ×
Holsteyns, F
Vankelecom, Ivo
Smeets, S
Dehaen, Wim
Jacobs, Pierre #
Issue Date: Jan-2001
Publisher: Elsevier science sa
Series Title: Journal of photochemistry and photobiology a-chemistry vol:144 issue:2-3 pages:141-151
Abstract: Several dyes that generate singlet molecular oxygen (O-1(2)) were occluded in polydimethylsiloxane (PDMS). For the homogeneous dyes, this occlusion forms an easy way of heterogenization, whereas it improves the performance of dyes that are heterogenized already in molecular sieves. These systems were investigated for the singlet oxygenation of test substrates, such as 2,3-dimethyl-2-butene and 1-methyl-1-cyclohexene. The PDMS elastomer was selected for its transparent, hydrophobic and permeability characteristics. The elastomer is 'wrapped' around the sensitizing system and hence shields the dyes from polar components, such as water, and balances the sorption of solvents and reagents. This results in an enhanced oxygenate yield for water sensitive dyes. Finally, a new porphyrin, 5,15-(2,6-dichlorophenyl)-10,20-(4-allyloxyphenyl)porphyrin, was synthesized and chemically anchored to PDMS, resulting in a highly active heterogeneous singlet oxygen generating system. (C) 2001 Elsevier Science B.V. All rights reserved.
ISSN: 1010-6030
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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