The Role of the Spatial Network of Hydrogen Bonds in the Motibilities of Particles of Aqueous Solutions of Aliphatic Amino Alcohols
摘要
A comparison was made of the translational and rotational mobilities of molecules and particles in aqueous solutions of two vicinal aliphatic amino alcohols, which have a spatial network of hydrogen bonds, based on the results obtained by NMR (spin echo) methods and broadband dielectric spectroscopy in the temperature range 283–313 K. The results on the concentration and temperature dependence of the mobilities of particles in the studied systems allow us to conclude that the translational and rotational mobilities of molecules and particles of the studied systems are related in the time interval 10–11–10–9 s. This is explained by the presence of spatial networks of H-bonds in the studied systems, which manifest themselves differently in different concentration ranges of aqueous solutions of two different amino alcohols. The discussion includes the results of measuring particle mobilities using other methods and in other time intervals.