Switchable Solvents Consisting of Amidine/Alcohol or Guanidine/Alcohol Mixtures

Liquids that consist of a mixture of an alcohol and either an amidine or a guanidine have been developed to switch from a low-polarity form to a high-polarity ionic liquid upon treatment with CO2 at atmospheric pressure. Treatment with N2 and/or mild heat (50−60 °C) reverses the process. These liqui...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 47; no. 3; pp. 539 - 545
Main Authors Phan, Lam, Chiu, Daniel, Heldebrant, David J, Huttenhower, Hillary, John, Ejae, Li, Xiaowang, Pollet, Pamela, Wang, Ruiyao, Eckert, Charles A, Liotta, Charles L, Jessop, Philip G
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 06.02.2008
Subjects
Applied sciences
Chemical engineering
Exact sciences and technology
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Summary:Liquids that consist of a mixture of an alcohol and either an amidine or a guanidine have been developed to switch from a low-polarity form to a high-polarity ionic liquid upon treatment with CO2 at atmospheric pressure. Treatment with N2 and/or mild heat (50−60 °C) reverses the process. These liquids can be used as switchable solvents to dissolve and then precipitate a solute or to dissolve reagents for a chemical synthesis and then precipitate the product.
Bibliography:istex:F893389ED0BBF9D924A71785D7168D5734A38FE5
ark:/67375/TPS-H69TS8D3-K
ISSN:0888-5885
1520-5045
DOI:10.1021/ie070552r