Хемосенсорные полимерные материалы для детектирования анионов

Special factors must be taken into account for the development of chemosensor polymeric materials for anion detection: bulky receptors, different structure of anions etc. Polymethylmethacrylate (PMMA) films containing immobilized chemosensors with thio/ selenourea moieties and anthracene fluorophore were obtained. Polymeric materials were investigated by methods of electron absorption/emission spectroscopy. PMMA film containing 1-(anthracene-9-ylmethyl)-3-benzoylselenourea represents selective chemosensor for chloride anions. Selective fluorescence quenching was revealed in PMMA films containing 3-[( anthracene-9-ylmethylidene)amino]-1-[2-(diethylamino)phenyl]thiourea or 3-(anthracene-9-ylmethyl)-1-benzoylthiourea in presence of thiocyanate-anions. Polymeric material with immobilized 3-[( anthracene-9-ylmethylidene)amino]-1-(2-methoxyphenyl)thiourea possesses enhanced sensitivity towards fluoride anions which slightly depends on presence of other anions.