Application In Synthesis of 1-Ethyl-3-methyl-1H-imidazol-3-ium chlorideIn 2022, Scovazzo, Paul;Sullivan-Gonzalez, Frances;Amos, Ryan published 《Hydrogen-bond acceptance’s role in designing room temperature ionic liquid (RTIL) membranes for gas separations, Part II, beta-parameter and relative humidity impacts on membrane stability》. 《Journal of Membrane Science》published the findings. The article contains the following contents:
RTIL H-bond acceptance ability and the porous support’s polymer are important factors for RTIL-membrane stability. Under dry conditions, the stability of RTILs supported in porous polyethersulfone decreased with increasing beta-parameters. Under humid conditions, the CH4-permeance vs. rH relationship for 1-ethyl-3-methylimidazolium trifluoromethanesulfonate changed when the porous support’s polymer changed. With proper selection of the porous support’s chem., it is possible to create RTIL-membranes that are stable over a range of rHs for both low and high Beta-parameter RTILs. However, in some RTIL/polymer supported membranes, a reversible and repeatable dual mode CH4-permeance behavior occurs with significantly lower CH4-permeances at elevated rHs. This dual mode is the result of RTIL/polymer interaction and not the result of changes in RTIL/transporting gas phys. chem. RTIL capillary rise vs. rH measurements are consistent with, but insufficient to state that, the dual mode results from changes in the RTIL/polymer interfacial capillary forces. Increasing gas rH leads to increased gas permeability with greater permeability enhancement for CH4 transport. This leads to decreased CO2/CH4 selectivity with increasing rH. Mixed-gas CO2/CH4 separation data for three benchmark RTIL-membranes, verified to be stable from 0%-rH to >90%-rH, confirmed this permeance increase and selectivity decrease statement. And 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride (cas: 65039-09-0) was used in the research process.
1-Ethyl-3-methyl-1H-imidazol-3-ium chloride(cas: 65039-09-0) is an imidazolium chloride ionic liquid that can be used as:a solvent as well as catalyst for the depolymerization of oak wood lignin; a solvent in the hydrolysis of hemicellulose (xylan) to xylose using Brønsted acid catalysts.Application In Synthesis of 1-Ethyl-3-methyl-1H-imidazol-3-ium chloride
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem