Bezkrovna O. The spectral and acid-base properties of the dyes in polyamic acid-based Langmuir-Blodgett films

Investigation objects: monolayers creation process and on their basis Langmuir-Blodgett (LB) films, containing dyes of various types. Purpose: making of stabile polymeric LB films with immobilized indicators, rhodamine dyes and electrochemiluminophores, determination of protolytic and spectral-luminescent properties ряда number in films, and also revealing of laws influence composition of these films on position protolytic equilibrium reagents. Methods: LB method, X-ray photoelectron spectroscopy, spectrophotometry, fluorescence spectroscopy, atomic-power microscopy. The forming of stabile polymeric monolayers on the water surface with different types of molecules has been studied. The microenvironment influence in LB films on spectral and protolytic properties of dyes immobilized in comparison with microemulsions and micelles solutions is investigated. The stable polymeric nano-sized рH-sensitive multilayers can be repeatedly used as рH-sensitive elements within a wide acidity range including. Degreeof application: the obtained results can be used for creation of polymeric layers LB with pH-sensitive dyes and electrochemiluminophores for creation of sensor for liquids analysis.