спектроскопія

Multi-walled carbon nanotubes and graphite nanoplatelets were functionalized via acid treatment to overcome the problem of agglomeration. Fourier transform infrared spectroscopy showed the chemical modification of the nanocarbons while the general relationship between the chemical treatment and the defects population was analyzed by Raman spectroscopy. The information regarding the mass loss and impurities is obtained from the thermogravimetric analysis. X-ray diffraction showed the effect of acid treatment on the physical states of the nanocarbons including the crystalline texture.

The method of obtaining phosphorus-containing polyester by the Steglich reaction is considered. The results of studies on the production of polyesteresters using ethyl phosphate group in the structure of dipolyethyleneglycolethylphosphate are presented. The obtained polymer was characterized by IR and 1H NMR spectroscopy. The composition of polyester ether was evaluated and its end groups were analyzed.

The hydrosilylation reaction of 2,4,6,8-tetrahydro-2,4,6,8-tetramethylcyclotetrasiloxane (D4H) with 2,2,3,3-tetrafluoropropyl acrylate and vinyltriethoxysilane in the presence of platinum catalysts (platinum hydrochloric acid, Karstedt’s catalysts and Pt/C (10%) at 323 K) has been carried out and corresponding addition adduct (D4R,R‘) has been obtained. The synthesized product D4R,R was analyzed by FT-IR, 1H, 13C, and 29Si NMR spectroscopy.

This article provides an analysis of modern methods of spectroscopy in medicine, examined their classification. Conducted a review of portable spectroscopic systems, analysis of the advantages and disadvantages of their use. Analysis of components for spectroscopic analysis. Review of methods of the spectrum classification. Brought a conceptual diagram of processing the received data and its classification. Review of applications portable spectroscopic systems.