Kazan State Technological University

Supramolecular Organization of Copper-Coordinated Segmented Polyurethanes

Abstract The supramolecular organization in segmented polyurethanes modified with various copper-containing metal complexes was studied using the small-angle X-ray scattering method and atomic-force microscopy. It was found that in series of CuCl2—N,N'-diethylhydroxylamine (MCS s...

Multi-criteria selection of additives for CO2-based mixtures in solar-driven supercritical CO2 Brayton cycles: A critical review of performance, compatibility, and trade-offs

The supercritical carbon dioxide (sCO 2 ) Brayton cycle offers high efficiency and compactness for power generation. However, its integration with Concentrated Solar Power (CSP) in hot, arid regions is hindered by pure CO 2 's low critical temperature (31°C), which compromises co...