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Your search keyword '"Chiappe, C"' showing total 10 results
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3. Phosphonium ionic liquid-polyacrylate copolymer membranes for improved CO2 separations

Author

Galiano, F, Mancuso, R, Guazzelli, L, Mauri, M, Chiappe, C, Simonutti, R, Brunetti, A, Pomelli, C, Barbieri, G, Gabriele, B, Figoli, A, Galiano F., Mancuso R., Guazzelli L., Mauri M., Chiappe C., Simonutti R., Brunetti A., Pomelli C. S., Barbieri G., Gabriele B., Figoli A., Galiano, F, Mancuso, R, Guazzelli, L, Mauri, M, Chiappe, C, Simonutti, R, Brunetti, A, Pomelli, C, Barbieri, G, Gabriele, B, Figoli, A, Galiano F., Mancuso R., Guazzelli L., Mauri M., Chiappe C., Simonutti R., Brunetti A., Pomelli C. S., Barbieri G., Gabriele B., and Figoli A.

Abstract

Developing new materials for the separation of gas mixtures is a key subject in setting up a circular economy. In this work, we report the synthesis and application of novel polymeric membranes, based on polymerized ionic liquids (PILs), to be used for CO2 separation from different gas pairs. Phosphonium-based PILs have been copolymerized within an original acrylate formulation that allowed the development of dense membranes able to overcome some of the main limitations related to ionic liquid membranes. Thereby, a collection of phosphonium ionic liquids has been investigated by evaluating the influence of the alkyl chain length and anion type on membrane structure and properties by employing a series of different chemo-physical characterization techniques. The membranes showed a marked preference toward CO2 permeation in the wet state, which simulates the conditions occurring with many CO2-containing gas streams, with two of the studied membranes exceeding the Robeson upper bound for the CO2/H2 gas pair.

Published
2021

4. Electrochemical and spectroscopic study of vanadyl acetylacetonate–ionic liquids interactions

Author

Guglielmero, L., primary, Langroudi, Mo. Meskinfam, additional, Khatib, M. Al, additional, de Oliveira, M. Aysla Costa, additional, Mecheri, B., additional, De Leo, M., additional, Mezzetta, A., additional, Guazzelli, L., additional, Giglioli, R., additional, Epifanio, A. D', additional, Pogni, R., additional, Chiappe, C., additional, and Pomelli, C.S., additional

Published
2021
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7. Tailor-made ionic liquids

Author

Jork, C., primary, Kristen, C., additional, Pieraccini, D., additional, Stark, A., additional, Chiappe, C., additional, Beste, Y.A., additional, and Arlt, W., additional

Published
2005
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10. Acute toxicity and biodegradability of N-alkyl-N-methylmorpholinium and N-alkyl-DABCO based ionic liquids

Author

Andrea Giovani, Bernardo Melai, Monia Renzi, Cinzia Chiappe, Carlo Pretti, Sunita Rajamani, Gianfranca Monni, Silvano Focardi, Pretti, C, Renzi, M, FOCARDI S., E, Giovani, A, Monni, G, Melai, B, Ramayani, S, and Chiappe, C

Subjects
Morpholinium, Morpholines, Health, Toxicology and Mutagenesis, Vibrio fischeri, DABCO, Ionic liquid, Ecotoxicology, Piperazines, chemistry.chemical_compound, Toxicity Tests, Acute, Organic chemistry, Alkyl, Octane, chemistry.chemical_classification, Low toxicity, Chemistry, Public Health, Environmental and Occupational Health, Ionic liquids, Biodegradability, General Medicine, Biodegradation, Aliivibrio fischeri, Pollution, Acute toxicity, Chain length, Biodegradation, Environmental, lipids (amino acids, peptides, and proteins), Azabicyclo Compounds, Water Pollutants, Chemical
Abstract

N -Alkyl- N -methylmorpholinium and N -alkyl substituted 1,4-diazabicyclo[2.2.2]octane (DABCO) based ionic liquids (ILs), N -alkyl-DABCO, bearing short alkyl chains are characterised by a low toxicity to Vibrio fischeri , although toxicity significantly increases on increasing the alkyl chain length. Alkyl chain length affects also biodegradability in the 28 days tests; the higher level of biodegradation was found in both the series in the case of the ethyl (C2) derivatives. In the case of N -ethyl DABCO based IL, although biodegradability is still around 40%, and consequently this IL cannot be classified as “readily biodegradable”, this value is similar to the more biodegradable functionalized imidazolium based ILs.

Published
2011
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