title: Singlet oxygen generation by photoactive polymeric microparticles with enhanced aqueous compatibility.
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.
authors.affiliation: Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. Sos Baynat, s/n, 12071, Castellón, Spain.
authors.forename: Víctor
authors.initials: V
authors.lastname: Fabregat
authors.forename: M Isabel
authors.initials: MI
authors.lastname: Burguete
authors.forename: Francisco
authors.initials: F
authors.lastname: Galindo
authors.forename: Santiago V
authors.initials: SV
authors.lastname: Luis
mesh_terms: D000873:Anthracenes / Q000737:chemistry; D005663:Furans / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D008027:Light; D008855:Microscopy, Electron, Scanning; D055668:Photochemical Processes; D017319:Photosensitizing Agents / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D011422:Propionates / Q000737:chemistry; D026082:Singlet Oxygen / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D000873:Anthracenes; D005663:Furans; D017319:Photosensitizing Agents; D011108:Polymers; D011422:Propionates; C110869:anthracene-9,10-dipropionic acid; D014867:Water; D026082:Singlet Oxygen; C060089:2-furoic acid