Polish version

Login form

register


Print

M. Nowakowska, A. Karewicz, M. Kłos, Sz. Zapotoczny

New water soluble polymeric photosensitizers containing porphyrin chromophores

Polimery 2003, No 7-8, 533


Summary

A comparison of photochemical properties of two amphiphilic polymers: statistical and block copolymers of sodium styrenesulfonate and 5-(4-acryloyloxyphenyl)-10,15,20-tritolylporphyrin [PSSS-s-Po and PSSS-b-Po, respectively - Formula (I)] is presented. It was demonstrated that both copolymers act as effective photosensitizers. Fluorescence quantum yield of porphyrin chromophores of PSSS-s-Po is much higher than of PSSS-b-Po. They can influence the photochemical reactions via energy transfer or electron transfer. The efficient charge separation in the aqueous solution containing the copolymer and viologen 1,1'-dipropylsulfonate was reached. The kinetics of the reaction of the photooxidation of polycyclic aromatic compounds (such as rubrene), solubilized in aqueous solution of the copolymer, was also investigated (Fig. 3).


Keywords: antenna polymers, styrenesulfonate/5-(4-acryloyloxyphenyl)-10,15,20-tritolylporphyrin copolymers, photoinduced electron transfer, porphyrins, photosensitizers


M. Nowakowska, A. Karewicz, M. Kłos, Sz. Zapotoczny

New water soluble polymeric photosensitizers containing porphyrin chromophores