Singlet oxygen generation by photoactive polymeric microparticles with enhanced aqueous compatibility |
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| Authors: | Víctor Fabregat M. Isabel Burguete Francisco Galindo Santiago V. Luis |
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| Affiliation: | 1. Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Sos Baynat, s/n, 12071, Castellón, Spain
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| Abstract: | Two new photoactive materials compatible with environmentally friendly solvents (water and methanol) have been synthesized and characterized. They are comprised of a porous matrix of polystyrene and divinylbenzene with bound Rose Bengal and additional pendant groups added to increase the hydrophilicity (ethylenediamine and γ-gluconolactone). The new polymers are efficient photocatalysts capable of generating singlet oxygen after irradiation with visible light. Photochemical oxygenations of 9,10-anthracenedipropionic acid and 2-furoic acid have been carried out. The measured conversions indicate that the new supported photosensitizers are more effective than the parent hydrophobic polymer. Figure New photoactive polymers for oxidations in aqueous solvent |
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