Qutubuddin

Texter J, Horeh F R, Qutubuddin S and Dayalan E 1990 Voltammetrie deteetion of mioelle formation J. Colloid Interface Sc/. 135 263-71... 

Meneghetti, P. and Qutubuddin, S. 2006. Synthesis, thermal properties and applications of polymer-clay nanocomposites. Thermochimica Acta 442 74-77. 

Qutubuddin, S, and Fu, X, Proceedings of SAMPE Advanced Composites Conference, Detroit Michigan, September 1999. 

Syed Qutubuddin Department of Chemical Engineering, Case Western Reserve University, Cleveland, Ohio... 

An ultralow tension system was needed to study mechanisms of high Ca flow at relatively low velocities. A Witco petroleum sulfonate was used that had previously been studied by several researchers including Qutubuddin (15). The tension between the middle phase microemulsion and the excess oil phase was only 0.0015 dyne/cm. Surfactants were used as received, and all other chemicals were reagent grade. 

Qutubuddin, S. Ph.D. Thesis, Carnegie-MelIon Univ., Pittsburgh, 1983. 

Miller, C.A. Qutubuddin, S. Interfacial Phenomena in Non-Aoueous Media. Marcel Dekker New York, 1986, p. 117-184. 

Haque, E. Qutubuddin, S. Polymeric Blends from Microemulsions. To be submitted. 

Wiencek JM and Qutubuddin S. Microemulsion Uquid membranes II. Copper ion removal from buffered and unbuffered aqueous feed. Sep Sci Technol 1992 27 1407-1422. 

Li NN, Cahn RP, and Shrier AL. Liquid membrane process for the separation of aqueous mixtures. US Patent 3,779,907, 1973. Wiencek JM and Qutubuddin S. Microemulsion liquid membranes 1. Application to acetic acid removal from water. Sep Sci Technol 1992 27 1211-1228. 

S. QUTUBUDDIN, C. A. MILLER2, W. J. BENTON2, and T. FORT, JR.2 Chemical Engineering Department, Carnegie-Mellon University, Pittsburgh, PA 15213... 

The effects of pH on microemulsions have been Investigated by Qutubuddin et al. (4,5) who have reported a model pH-dependent microemulsion using oleic acid and 2-pentanol. It has been shown that the effect of salinity on phase behavior can be counterbalanced by pH adjustment under appropriate conditions. Added electrolyte makes the surfactant system hydrophobic while an increase in pH can make it hydrophilic by ionizing more surfactant. Based on the phase behavior of pH-dependent systems, a novel concept of counterbalancing salinity effects with pH is being proposed. The proposed scheme for reducing the sensitivity of ultralow interfacial tension (IFT) to salinity is to add some carboxylate or similar surfactant to a sulfonate system, and adjust the pH. The pK and the concentration of the added surfactant are variables that may be... 

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