Persons

Composite materials based on polystyrene and sucrose are of scientific interest, since they can be used in modern problems of biomedicine and microelectronics, such as: the creation of biochips and memory elements. In this study as the main method for analyzing the physical properties of composites the IR spectroscopy has been used. The main attention has been paid to the spectral coordinates of the absorption lines of sucrose in the middle IR region. All experiments have been conducted under an oxygen atmosphere and at room temperature. During the experiment the transmission spectra of the composite materials based on sucrose and polystyrene in the range of 600-5000 cm have been obtained. The decoding of the main transmission lines has been carried out. In the course of working with the spectral characteristics of composites it has been found that the saccharide, dissolved in the polymer matrix, retains the profile of the spectral lines, and its molecules do not undergo the destructive effects. The results obtained suggest that the composite material, based on polystyrene and sucrose is a chemically stable system.

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The composite materials based on poly[2-methoxy-5-(2ethylhexyoxy)-1,4-phenylevinylen] and titanium dioxide are promising for application in the opto-electronic and chemical industries. In connection with this the studies on behavior of chemical bonds in a composite and on the effect of non-organic additive on their properties are urgent. Physical properties of the presented composites have been analyzed using the IR spectroscopy. All experiments have been carried out in the oxygen atmosphere and at room temperature. In the work the spectral characteristics of the formed composites in the middle IR region have been studied and the spectral absorption lines have been deciphered. It has been shown that the introduction of titanium dioxide into the polymer matrix does not cause intensive oxidative processes inside the composite. It has been found that the main absorption lines, characterizing the vibronic properties of titanium dioxide do not undergo the spectral shifts within the polymer matrix.

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