Programmable pH buffers
| DWPI Title: Changing solution pH, comprises dissolving programmable pH buffer in water to provide aqueous solution, and heating aqueous solution above or cooling aqueous solution below lower critical solution temperature |
| Abstract: A programmable pH buffer comprises a copolymer that changes pKa at a lower critical solution temperature (LCST) in water. The copolymer comprises a thermally programmable polymer that undergoes a hydrophobic-to-hydrophilic phase change at the LCST and an electrolytic polymer that exhibits acid-base properties that are responsive to the phase change. The programmable pH buffer can be used to sequester CO2 into water. |
| Use: The method is useful for changing solution pH. |
| Novelty: Changing solution pH, comprises: dissolving programmable pH buffer in water thus providing aqueous solution, where programmable pH buffer comprises copolymer that changes pKa at lower critical solution temperature in water, and copolymer comprises thermally programmable polymer that undergoes hydrophobic-to-hydrophilic phase change at lower critical temperature and electrolytic polymer that exhibits acid-base properties that are responsive to phase change; and heating aqueous solution above or cooling aqueous solution below lower critical solution temperature. |
| Filed: 9/24/2015 |
| Application Number: US14864637A |
| Tech ID: SD 12222.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Data from Derwent World Patents Index, provided by Clarivate All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |