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US 7,351,837 B1Granted
Thermally cleavable surfactants without deprotonation
AssigneeSandia Corporation
InventorsJames R. McElhanon, Gregory M. Jamison, Timothy M. Long, Douglas A. Loy, Kamyar Rahimian, Blake A. Simmons, Chad L. Staiger, David R. Wheeler, Thomas Zifer
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Abstract
The present invention describes surfactants of formula (I), wherein R, RN, and m are defined herein, processes for their preparation, and methods for their decomposition.
Claims10
A compound of formula (I),
- wherein RN is -L-G, wherein
- L is -aryl-, -heteroaryl-, -(C8-C30)alkyl-, -(C6-C20)haloalkyl-, -(C3-C10) cycloalkyl-, or -heterocyclyl-;
- and
- G is —S(O)2OM,
- wherein M is H, Li, Na, K, Rb, or Cs;
- R is -L1-R′, wherein,
- L1 is a bond, -(C1-C4)alkyl-O-, -aryl-, or -(C3-C10)cycloalkyl-;
- and
- R′ is -(C8-C30) alkyl, -(C6-C20)haloalkyl, or -((C1-C4)alkyl-O)j-R″, wherein
- j is an integer from 2 to 100;
- and
- R″ is —H or methyl;
- and
- m is an integer from 1 to 4.
11 more elements
Dependencies are inferred from the claim text.