Zobrazeno 1 - 10
of 70
pro vyhledávání: '"David S. Soane"'
Publikováno v:
Journal of Applied Polymer Science. 63:1369-1372
Large transitions in viscosity are demonstrated for suspensions of environmentally sensitive gel microspheres upon application of external stimuli. Depending on the number concentration of microspheres, these suspensions may thicken to become semisol
Autor:
An Thien Nguyen, David S. Soane, Kanth Josyula, Moustafa Aboushabana, Huaxiang Yang, James Nathan Ashcraft, Allison Silverstone, Mehta Vinay
Publikováno v:
Day 2 Tue, February 05, 2013.
Presented here is a new approach to hydraulic fracturing, using proppants that self-suspend in water. To form these self-suspending proppants (SSP), conventional proppant particles are encapsulated with a thin layer of a high-molecular-weight hydroge
Autor:
David S. Soane, Stephen E. Barry
Publikováno v:
Macromolecules. 29:3565-3573
Polymer films were swelled with carbon dioxide (CO2), allowing the alignment of second harmonic generating (SHG) chromophores with an electric field at ambient temperatures. SHG decay provided info...
Autor:
Donald S. Nelson, David S. Soane
Publikováno v:
Polymer Engineering and Science. 34:965-974
The effects of processing conditions on the morphology of molecular composite films are examined by optical and electron microscopy. During coagulation processing from solutions in methanesulfonic acid (MSA), rigid-rod polymer, such as poly(p-phenyle
Autor:
David S. Soane, Roger K. Yonkoski
Publikováno v:
Journal of The Electrochemical Society. 141:585-592
A model has been developed to predict free surface profiles over topographic features for nonvolatile fluids. The degree of planarity of the free surface is shown to depend on two geometric ratios and the relative magnitude of centrifugal and surface
Publikováno v:
Journal of The Electrochemical Society. 141:264-269
The key process in silicon surface micromachining is the selective etching of silicon dioxide sacrificial layers with hydrofluoric acid. This paper discusses experimental sacrificial layer etching results. The etching reaction shifts from kinetic con
Publikováno v:
Electrophoresis. 15:597-615
Using capillary electrophoresis, large DNA molecules (2.0–23.1 kbp) may be rapidly separated in ultradilute polymer solutions (< 0.002% w/w) under, a high-voltage, steady field (265 V/cm). At this polymer concentration, the separation mechanism app
Publikováno v:
Journal of The Electrochemical Society. 141:270-274
Modeling of sacrificial layer etching can be done by combining the diffusion rates of etchants in solution and the chemical reaction rate. Steady‐state diffusion is estimated for diffusion coefficients in water on the range of as observed from an i
Autor:
David S. Soane, Donald S. Nelson
Publikováno v:
Polymer Engineering and Science. 33:1619-1626
Kinetics of phase separation of poly(p-phenylenebenzobisoxazole) (PBO) in methanesulfonic acid are examined by the time-resolved small angle light scattering and turbidity measurements. Thin films of polymer solutions are spin-coated on microscope sl
Autor:
Young Chan Bae, David S. Soane
Publikováno v:
Journal of Chromatography A. 652:17-22
The current status of separation media development for capillary electrophoresis is reviewed in fight of well-known electrophoretic migration and entangled polymer solution theories. The relative strengths and weaknesses of crosslinked systems and en