个人简介

A.B. 1964, DePauw Ph.D. 1975, Indiana Postdoctoral Fellow 1976-80, Santa Barbara

研究领域

Organic Chemistry

Membrane mimetic/micellar/association colloid chemistry, chemical trapping via arenediazonium ions/reaction mechanisms S. Fox, R. T. Stibrany, J. A. Potenza and H. J. Schugar, A Mixed-Valence Trinickel Complex Containing Nickel(I), Nickel(II) and Iodonium Moieties, Inorganica Chimica Acta, 316, 122-126 (2001). J. Krenos and J. Potenza, Study Guide for Atkins and Jones's Chemical Principles: The Quest for Insight, Second Edition, New York, 476 pgs, (2001). J. A. Potenza, T. J. Emge, J. Albaneze, S. Knapp and H. J. Schugar, A Spiro-linked Pyrene-Naphthoquinone, Acta Crystallographica C56, 1494-1495 (2000). S. Fox, R. T. Stibrany, J. A. Potenza, S. Knapp and H. J. Schugar, Copper(II) and Nickel(II) Complexes of Binucleating Macrocyclic Bis(disulfide)tetramine Ligands. Inorganic Chemistry,39, 4950-4961 (2000). Knapp, B. Huang, T. J. Emge, S. Sheng, K. Krogh-Jespersen, J. A. Potenza and H. J. Schugar, A Pyropheophorbide Dimer with Single Pyrrole p Overlap and a Low Energy Q Absorption. Journal of the American Chemical Society, 121, 7977-7978(1999).

近期论文

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Specific Ion-Pair/Hydration Model for the Sphere-to-Rod Transitions of Aqueous Cationic Micelles. The Evidence from Chemical Trapping. Laurence S. Romsted, International Symposium on Recent Trends in Surface and Colloid Science, Nov. 15-16, 2007, Kolkata, India, in press. Quantitative determination of alpha-tocopherol distribution in a tributyrin/Brij 30/water model food emulsion. Verónica Sánchez-Paz, Maria José Pastoriza-Gallego, Sonia Losada-Barreiro, Carlos Bravo-Díaz, K. Gunaseelan, Laurence S. Romsted, Journal of Colloid and Interface Science 2008, 320, 1-8. Structural, Infrared and Density Functional Theory Studies of N,N,N’,N’-Tetramethylimidazolidinium Dichloride. A Model for Cation-Anion Association of Headgroups and Counterions in the Interfacial regions of Gemini Micelles. Brian Regler, Thomas J. Emge, James J. Elliot, Ronald Sauers, Joseph Potenza, and Laurence S. Romsted, Journal of Physical Chemistry B, 2007, 111, 13668-13674. Micellar Induced Regioselectivity in the Two-Step Consecutive Reaction of SO32- with Br-(CH2CH2)n-Br (n = 2-5) Fredrik Currie, Patrik Jarvoll, Krister Holmberg, Laurence S. Romsted, Krishnan Gunaseelan, Journal of Colloid and Interface Science, 2007, 312, 453-459. Do Amphiphile Aggregate Morphologies and Interfacial Compositions Depend Primarily on Interfacial Hydration and Ion Specific Interactions? The Evidence from Chemical Trapping, Laurence S. Romsted, Langmuir, 2007, 23, 414-424. Determining alpha-Tocopherol Distributions between the Oil, Water, and Interfacial Regions of Macroemulsions: Novel Applications of Electroanalytical Chemistry and a Pseudophase Kinetic Model Gunaseelan, K.; Romsted, L. S., Gallego, M-J. P., Elisa González-Romero, E., Bravo-Díaz, C. Advances in Colloid and Interface Science, 2006, 123-126, 303-311. Specific Ion-Pairing and Interfacial Hydration as Controlling Factors in Gemini Micelle Morphology. Chemical Trapping Studies Geng, Y.; Romsted, L. S.; Menger, F. M. Journal of the American Chemical Society, 2006, 128, 492-501. Ion Pair Formation in Water. Association Constants of Bolaform, Bisquaternary Ammonium, Electrolytes by Chemical Trapping. Geng, Y.; Romsted, L. S. The Journal of Physical Chemistry B, 2005, 109, 23629-23637. Origin of the Sphere-to-Rod Transition in Cationic Micelles with Aromatic Counterions: Specific Ion Hydration in the Interfacial Region Matters. Geng, Y.; Romsted, L. S.; Froehner, S.; Zanette, D.; Magid, L.; Cuccovia, I. M.; Chaimovich, H. Langmuir, 2005, 21, 562-568. Determining Antioxidant Distributions in Model Food Systems: Development of a New Kinetic Method Based on the Pseudophase Model in Micelles and Opaque Emulsions. Romsted, L. S.; Zhang, J. Progress in Colloid and Polymer Science, 2004, 123, 182-187. Determining Partition Constants of Polar Organic Molecules between the Oil/Interfacial and Water/Interfacial Regions in Emulsions: A Combined Electrochemical and Spectrometric Method. Gunaseelan, K.; Romsted, L. S.; González-Romero, E.; Bravo-Díaz, C. Langmuir. 2004, 20, 3047-3055. Concentration of Urea in Interfacial Regions of Aqueous Cationic, Anionic, and Zwitterionic Micelles Determined by Chemical Trapping. Romsted, L. S.; Zhang, J.; Cuccovia, I. M.; Politi, M.; Chaimovich, H. Langmuir, 2003, 19, 9179-9190. Effect of Alkyl Group Size on the Mechanism of Acid Hydrolysis of Benzaldehyde Acetals. Belarmino, A. T. N.; Froehner, S.; Zanette, D.; Bunton, C. A.; Farah, J. P. S.; Romsted, L. S., Journal of Organic Chemistry, 2003, 68, 706-717. Snared by Trapping: Chemical Explorations of Interfacial Compositions of Cationic Micelles. Romsted, L. S., in Adsorption and Aggregation of Surfactants in Solution, Mittal, K. L.; Shah, D. O., Eds, Marcel Decker, New York, 2002, pp. 149-170. Estimating Concentrations of Condensed Counterions Around a Polyelectrolyte by Chemical Trapping. McKernan, B. A.; Romsted, L. S. Symposium Series No. 832: Conducting Polymers and Polyelectrolytes: From Biology to Photovoltaics, Rubinson, J. F.; Mark, H. B. Jr, editors, Washington, 2003, Chapter 14, pp. 184-199. A Kinetic Method for Determining Antioxidants Distributions in Model Food Emulsions: Distribution Constants of t-Butylhydroquinone in Mixtures of Octane, Water and a Nonionic Emulsifier. Romsted, L. S.; Zhang, J. Journal of Agricultural and Food Chemistry, 2002, 50, 3328-3336. Effect of Urea on Biomimetic Systems: Neither Water 3-D Structure Rupture or direct Mechanism, Simply a More "Polar Water". Dias, L. G.; Florenzano, F. H.; Reed, W. F.; Baptista, M. S.; Silvia, M. B. S.; Alvarez, E. B.; Chaimovich, H.; Cuccovia, I. M.; Carmen, L. C. A.; Brasil, C. R.; Romsted, L. S.; Politi, J. J., Langmuir 2002, 18, 319-324 Interfacial Compositions of Surfactant Assemblies by Chemical Trapping with Arenediazonium Ions: Method and Its Applications. Romsted, L. S., In Reactions and Synthesis in Surfactant Systems, Texter, J., Ed., Marcel Dekker, New York, 2001, pp. 265-294. Urea Effect on Biomimetic Aggregates. Amaral, C. L. C; Chaimovich, H.; Cuccovia, I. M.; Florenzano, F. H.; Politi, M. J.; Reed, W.; Romsted, L. S.; Souza, S. M. B. Abstract, First Mercosur Workshop on Biomembranes, Nov 30-Dec. 1, 2000, Buenos Aires, Argentina. Interfacial Composition of Gemini Surfactant Micelles Determined by Chemical Trapping. Menger, F. M.; Keiper, J. S.; Mbadugha, B. N. A.; Caran, K. L.; Romsted, L. S. Langmuir, 2000, 16, 9095-9098. J. Yao, L. S. Romsted. Arenediazonium Salts: New Probes of the Compositions of Association Colloids. 7. Average Hydration Numbers and Cl– Concentrations in the Surfactant Film of Nonionic C12E5/Octane/Water Macroemulsions: Temperature and NaCl Concentration Effects. Yao, J.; Romsted, L. S. Langmuir, 2000 16, 8771-8779. F. M. Menger, J. S. Keiper, B. N. A. Mbadugha, K. L. Caran, L. S. Romsted, Interfacial Composition of Gemini Surfactant Micelles Determined by Chemical Trapping Langmuir, 2000 , 16, 9095-9098.