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Programmable pH buffers

United States Patent

9,550,168
January 24, 2017
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A programmable pH buffer comprises a copolymer that changes pK.sub.a 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 CO.sub.2 into water.
Gough; Dara Van (Albuquerque, NM), Huber; Dale L. (Albuquerque, NM), Bunker; Bruce C. (Albuquerque, NM), Roberts; Mark E. (Clemson, SC)
Sandia Corporation (Albuquerque, NM)
14/ 864,637
September 24, 2015
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.