Home – Home – Jornals – Chemistry for Sustainable Development 2017 number 2

The sorption process of carbon dioxide by an ionic liquid monomer (ILM) that is 2-methacryloxyethyl diethylammonium chloride, homopolymer based on it, as well as copolymers obtained by copolymerization of the indicated monomer with styrene and methacrylic acid at the molar ratios of 1 : 2 and 1 : 1, respectively, was studied. A relatively high level of absorptive capacity of ILM in comparison with the homopolymer and copolymers based on it was found. The observed relatively high absorptive capacity of СО₂, of the studied ILM is explained by the interaction of the contrarily charged fragment of the monomer molecule. Thus, a decrease in the absorptive capacity of samples in the transition from the monomer to the homopolymer on its base and further to copolymers distinguished by the content of ILM links in the macrochain composition, and consequently, fragments with opposite charges. It was demonstrated that the sorption process of carbon dioxide of the samples studied was reversible and one could reach complete desorption of CO₂ with the recovery of their adsorptive effect. Based on the results obtained, the ILM indicated and its homopolymer and copolymers on its base can be recommended as sorbents for carbon dioxide adsorption.