The molecular dynamics and structure of the copolymer hydroxybutyrate and chitosan and mixed compositions in the temperature effects in the aquatic environment was studied by probe analysis methods of EPR spectroscopy, DSC and X-ray analysis in large angles (XRD), UV spectroscopy. It is shown that in mixed compositions, ranging from 30% PHB, the correlation time increases on the order , that indicates a sharp deceleration of molecular mobility and according to DSC and X-ray structural analysis abruptly decreases the degree of crystallinity. In mixed compositions the diffusion coefficient decreases with increasing PHB rifampicin. Limited time (1 h) of the impact of water on mixed compositions at 70 ° C is accompanied by the growth of the molecular mobility of the probe in the system. Crystallinity is changed in complex way.
биодеградируемые композиции, кристалличность, зондовый метод ЭПР, ДСК, рентгеноструктурный анализ, озон, вода, biodegradable composition, crystallinity, EPR probe, DSC, X-ray diffraction analysis, ozone, water
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