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Том 482, № 1 (2018)
- Год: 2018
- Статей: 3
- URL: https://journals.rcsi.science/0012-5016/issue/view/9250
Physical Chemistry
Dehydrogenation of Bicyclohexyl on a Pt Catalyst Based on Oxidized Carbon Nanotubes
Аннотация
The dehydrogenation of bicyclohexyl over Pt-containing catalysts based on oxidized carbon nanotubes at 320°С has been studied. Decreasing the active component concentration from 3.0 to 0.5 wt % led to a significant increase in the specific activity of the catalyst measured from the evolved hydrogen volume. The use of oxidized carbon nanotubes in synthesis of active Pt-supported catalysts for bicyclohexyl dehydrogenation did not result in their deactivation.
121-124
Effect of the Microporous Structure and Nanoparticles on the Refractive Index and Dielectric Constant of Polymer Nanocomposites
Аннотация
The origin of the discrepancy between the calculated dielectric constants of polymers and experimental data has been considered. The differences are caused by the effect of residual amounts of the polymer synthesis products or the solvent used for producing films (plasticizing effect), or by the nonlinear terms of the Clausius–Mossotti function that have an effect on the dielectric constant. In the framework of the developed approach, the influence of nanoparticles on the refractive indices of some polymers and polymer nanocomposites has been evaluated.
125-129
Production of a Novel Material Based on a Collagen–Chitosan Composite and Ibuprofen in a Supercritical Medium
Аннотация
A novel material for biomedical applications was obtained from a collagen–chitosan composite and ibuprofen by a fluid process using supercritical carbon dioxide. The material was characterized by IR and X-ray photoelectron spectroscopy. The applicability of XPS analysis of biomaterials for quantification of loaded therapeutic agents is demonstrated.
130-133