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Immobilization of porphyrins in poly(hydroxymethylsiloxane)
Šabata, Stanislav, Hetflejš, Jiří, Rychtáriková, Renata, Kuncová, Gabriela, Lang, Kamil and Kubát, Pavel Immobilization of porphyrins in poly(hydroxymethylsiloxane) Chemical Papers, Vol.63, No. 4, 2009, 438-444
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Šabata, Stanislav
Hetflejš, Jiří
Rychtáriková, Renata
Kuncová, Gabriela
Lang, Kamil
Kubát, Pavel
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| Title |
Immobilization of porphyrins in poly(hydroxymethylsiloxane)
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| Journal name |
Chemical Papers
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| Publication date |
2009
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| Year available |
2009
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| Volume number |
63
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| Issue number |
4
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| ISSN |
0366-6352
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| Start page |
438
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| End page |
444
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2009
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| Language |
english
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| Subject |
250000 Chemical Sciences
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| Abstract/Summary |
Three tetracationic porphyrins differing in the position of charged nitrogen atoms on the peripheral substituents — 5,10,15,20-tetrakis(N-methylpyridinium-4-yl)porphyrin (TMPyP4), 5,10,15,20-tetrakis(N-methylpyridinium-2-yl)porphyrin (TMPyP2), 5,10,15,20-tetrakis(4-trimethylammoniophenyl) porphyrin (TMAPP), and hydrophobic 5,10,15,20-tetraphenylporphyrin (TPP), were immobilized by adsorption and encapsulation in poly(hydroxymethylsiloxane) (PHOMS). The so prepared porphyrin-PHOMS composites were characterized by porosimetry, scanning electron microscopy, fluorescence and diffuse reflectance UV-VIS spectroscopy. It was found that porphyrins are immobilized in the PHOMS matrix in the free base monomer form Their irradiation produced singlet oxygen O2(1Δg) with the lifetime of 10–30 μs.
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