The effect of the polarizability of Ionic Liquids on radical polymerization

• Applicant: Professor Dr. Stefan Spange
• Subject Area: Organic Molecular Chemistry - Synthesis and Characterisation ; Analytical Chemistry ; Physical Chemistry of Molecules, Liquids and Interfaces, Biophysical Chemistry
• Term: from 2017 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 325017030

There are complex, scientific relationships between volume properties (molar volume, refractive index) and solvatochromic polarizability parameters (SP) of ionic liquids that were unpredictable. The interpretation of the correlations requires additional measurements to determine the dipolarity (SdP) of ionic liquids. Therefore, SdP values for the ionic liquids are to be determined with the aid of new 2-phenyl-substituted imidazole and imidazolium derivatives as dipolar fluorescence probes. An important point is the verification or independent determination of SdP values of ionic liquids via two-parameter equation relationships according to the Kamlet-Taft parameters. The preparation of new boronate-substituted dyes for determining the polarizability (SP) of ionic liquids is also planned.

• DFG Programme: Research Grants