Effect of surface-active ionic liquids structure on their synthesis, physicochemical properties, and potential use as crop protection agents
Marta Wojcieszak, Anna Syguda, Sylwia Zięba, Adam Mizera, Andrzej Łapiński, Katarzyna Materna
Abstract
Efficient and subscribes to the principles of green chemistry synthesis of novel surface-active ionic liquids (SAILs) was characterized. Different surface properties and phytotoxicity were observed according to the structural variations of amphiphilic part of the SAILs. The analysis of the ATR infrared spectra revealed that the solute–solvent interactions are of the Van der Waals type, and the compounds studied are stable from 25 to 65 °C. The molecular and vibrational structures were analyzed using DFT methods. For optimized molecule geometries, electrical dipole moments were determined. The most significant contact angle values were observed for compounds with dipole moments greater than 20 Debye. The wettability of leaves surface was also investigated, and as a result, these SAILs were shown to be a potential candidate as effective crop protection agents.