Application of Poly(ethylene glycol)-based Aqueous Biphasic Systems as Reaction and Reactive Extraction Media

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• 作者：Ji Chen ; Scott K. Spear ; Jonathan G. Huddleston ; John D. Holbrey ; Richard P. Swatloski ; and Robin D. Rogers
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2004
• 出版时间：August 18, 2004
• 年：2004
• 卷：43
• 期：17
• 页码：5358 - 5364
• 全文大小：86K
• 年卷期：v.43,no.17(August 18, 2004)
• ISSN：1520-5045

文摘

Poly(ethylene glycol)-based aqueous biphasic systems (PEG-ABSs) have been investigated astunable reaction media, in the example presented here, to control the oxidation of cyclohexeneto adipic acid with hydrogen peroxide. The production of adipic acid was found to increase fromthe monophasic to the biphasic regimes, was greatest at short tie-line lengths (close to thesystem's critical point), and demonstrates how control of the ABS media, through changes insystem composition, PEG, salt, and tie-line length, can be used to readily tune and controlreactivity and product isolation in these aqueous biphasic reactive extraction systems. Challengesin using this system, including possible oxidation reactions of the PEG-OH end groups, arealso discussed.