Conformational Composition of Ethylene Glycol in Aqueous Solutions and on Metal Substrates

In this work, we studied the Raman spectra of ethylene glycol (EG) and its aqueous solutions, as well as the spectra of ethylene glycol solutions deposited on a metal substrate prepared by laser ablation. Scattering was excited by laser radiation with wavelengths of 532 nm and 785 nm. It was found that the Raman spectra of EG are similar to the spectra of aqueous solutions of EG and to the spectra of EG solutions on a metal substrate, which may indicate the stability of the conformational composition of EG upon dissolution and drying on a structured metal substrate.