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Metathesis depolymerizable surfactants

United States Patent

April 15, 2008
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A class of surfactant molecules whose structure includes regularly spaced unsaturation in the tail group and thus, can be readily decomposed by ring-closing metathesis, and particularly by the action of a transition metal catalyst, to form small molecule products. These small molecules are designed to have increased volatility and/or enhanced solubility as compared to the original surfactant molecule and are thus easily removed by solvent extraction or vacuum extraction at low temperature. By producing easily removable decomposition products, the surfactant molecules become particularly desirable as template structures for preparing meso- and microstructural materials with tailored properties.
Jamison; Gregory M. (Albuquerque, NM), Wheeler; David R. (Albuquerque, NM), Loy; Douglas A. (Tucson, AZ), Simmons; Blake A. (San Francisco, CA), Long; Timothy M. (Evanston, IL), McElhanon; James R. (Manteca, CA), Rahimian; Kamyar (Albuquerque, NM), Staiger; Chad L. (Albuquerque, NM)
Sandia Corporation (Livermore, CA)
11/ 475,267
June 26, 2006
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, including a paid-up license and the right, in limited circumstances, to require the owner of any patent issuing in this invention to license others on reasonable terms.