James R. McElhanon - Manteca CA, US Blake A. Simmons - San Francisco CA, US Thomas Zifer - Manteca CA, US Gregory M. Jamison - Albuquerque NM, US Douglas A. Loy - Albuquerque NM, US Kamyar Rahimian - Albuquerque NM, US Timothy M. Long - Urbana IL, US David R. Wheeler - Albuquerque NM, US Chad L. Staiger - Albuquerque NM, US
Assignee:
Sandia National Laboratories - Livermore CA
International Classification:
C07D 49/18 C09K 3/00
US Classification:
548431, 25218311
Abstract:
Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60 C. , the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments and the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
Thermally Cleavable Surfactants Without Deprotonation
James R. McElhanon - Manteca CA, US Gregory M. Jamison - Albuquerque NM, US Timothy M. Long - Evanston IL, US Douglas A. Loy - Tucson AZ, US Kamyar Rahimian - Albuquerque NM, US Blake A. Simmons - San Francisco CA, US Chad L. Staiger - Albuquerque NM, US David R. Wheeler - Albuquerque NM, US Thomas Zifer - Manteca CA, US
Assignee:
Sandia Corporation - Livermore CA
International Classification:
C07D 491/18
US Classification:
548431
Abstract:
The present invention describes surfactants of formula (I),.
Gregory M. Jamison - Albuquerque NM, US David R. Wheeler - Albuquerque NM, US Douglas A. Loy - Tucson AZ, US Blake A. Simmons - San Francisco CA, US Timothy M. Long - Evanston IL, US James R. McElhanon - Manteca CA, US Kamyar Rahimian - Albuquerque NM, US Chad L. Staiger - Albuquerque NM, US
Assignee:
Sandia Corporation - Livermore CA
International Classification:
C11D 3/37
US Classification:
510476, 510475
Abstract:
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.
Method For Preparing Thermally Cleavable Surfactants Without Deprotonation
James R. McElhanon - Manteca CA, US Gregory M. Jamison - Albuquerque NM, US Timothy M. Long - Evanston IL, US Douglas A. Loy - Tucson AZ, US Kamyar Rahimian - Albuquerque NM, US Blake A. Simmons - San Francisco CA, US Chad L. Staiger - Albuquerque NM, US David R. Wheeler - Albuquerque NM, US Thomas Zifer - Manteca CA, US
Assignee:
Sandia Corporation - Livermore CA
International Classification:
C07D 491/18
US Classification:
548425
Abstract:
The present invention describes surfactants of formula (I),.
James R. McElhanon - Manteca CA, US Blake A. Simmons - San Francisco CA, US Thomas Zifer - Manteca CA, US Gregory M. Jamison - Albuquerque NM, US Douglas A. Loy - Albuquerque NM, US Kamyar Rahimian - Albuquerque NM, US Timothy M. Long - Urbana IL, US David R. Wheeler - Albuquerque NM, US Chad L. Staiger - Albuquerque NM, US
Assignee:
Sandia Corporation - Livermore CA
International Classification:
B01F 17/00 C07D 491/18
US Classification:
516102, 548435
Abstract:
Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60 C. , the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments or the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
James R. McElhanon - Manteca CA, US Blake A. Simmons - San Francisco CA, US Thomas Zifer - Manteca CA, US Gregory M. Jamison - Albuquerque NM, US Douglas A. Loy - Albuquerque NM, US Kamyar Rahimian - Albuquerque NM, US Timothy M. Long - Urbana IL, US David R. Wheeler - Albuquerque NM, US Chad L. Staiger - Albuquerque NM, US
Assignee:
Sandia Corporation - Livermore CA
International Classification:
C07D 491/18
US Classification:
548431
Abstract:
Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60 C. , the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments or the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.
Kelly Simmons Potter - Albuquerque NM David R. Wheeler - Albuquerque NM Gregory M. Jamison - Albuquerque NM
Assignee:
Sandia Corporation - Albuquerque NM
International Classification:
G03C 500
US Classification:
430290, 430 22, 430321
Abstract:
A method of making a stacked three-dimensional refractive index structure in photosensitive materials using photo-patterning where first determined is the wavelength at which a photosensitive material film exhibits a change in refractive index upon exposure to optical radiation, a portion of the surfaces of the photosensitive material film is optically irradiated, the film is marked to produce a registry mark. Multiple films are produced and aligned using the registry marks to form a stacked three-dimensional refractive index structure.
Dr. Jamison graduated from the East Tennessee State University College of Medicine in 1985. He works in Salem, VA and specializes in Hospice & Palliative Medicine and Internal Medicine - Geriatrics. Dr. Jamison is affiliated with Salem VA Medical Center.