Sobko O. Synthesis and properties of oligomeric ionic liquids of hyperbranched structure

Object of research: protic and aprotic anionic hyperbranched oligomeric ionic liquids (HB-OIL). Subject of research: methods of synthesis of anionic protic and aprotic HB-OIL of different generations, methods of their functionalization, synthesis of amphiphilic and stimulus-sensitive HB-OIL, features of structure formation in condensed state, in solution and on interfacial surface, properties of synthesized compounds. Research methods: IR and NMR spectroscopy. gel permeation chromatography, differential scanning calorimetry, transmission electron microscopy, atomic force microscopy, thermogravimetric analysis, dielectric relaxation spectroscopy, dynamic light scattering and electrophoretic light scattering methods. For the first time, methods for the synthesis of anionic protic and HB-OIL with different degrees of branching and different heterocyclic counterions were developed and a method for regulating their amphiphilic properties was developed. For the first time the dependence of the structure, thermophysical properties and proton conductivity of the obtained compounds on the nature of the introduced ionic groups, changes in their number and hydrophilic-hydrophobic properties was established. protic HB-OIL in solution and on the interfacial surface. For the first time a method of synthesis of organic-inorganic solid-polymer ion-conducting electrolytes by sol-gel method using the obtained imidazolium sulfonate HB-OIL as a dopant was developed, the peculiarities of the structure of these materials and their properties were established.