Bulletin of the Chemical Society of Japan · 1990 · 49 citations · 7 references
Natural SciencesChemistryOrganic ChemistryPolymer ChemistryPolymer MaterialsOptical PolymersPhotochemistryPolymer CharacterizationPolymer Physical ChemistryPolymer PhysicsDielectric ConstantDielectric Constant EffectsPhotochromic PolymersReaction Quantum Yields
Abstract The quantum yields of the photochromic reaction between (E)- and (Z)-2-[1-(2,5-dimethyl-3-furyl)ethylidene]-3-isopropylidenesuccinic anhydride and the cyclized valence isomer were determined in various solvents and polymers. In both media the ring-opening quantum yield (ΦCE) depended on the dielectric constant of the media. In some polymer films, ΦCE were larger, and the cyclization quantum yield (ΦEC) and olefinic isomerization quantum yields (ΦEZ) and (ΦZE) were smaller than those in the corresponding solvents.
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