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

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Šabata, Stanislav
Hetflejš, Jiří
Rychtáriková, Renata
Kuncová, Gabriela
Lang, Kamil
Kubát, Pavel
Title Immobilization of porphyrins in poly(hydroxymethylsiloxane)
Journal name Chemical Papers
Publication date 2009
Year available 2009
Volume number 63
Issue number 4
ISSN 0366-6352
Start page 438
End page 444
Place of publication Poland
Publisher Versita
Collection year 2009
Language english
Subject 250000 Chemical Sciences
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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