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Search Publications by: Jack F. Douglas (Assoc)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 351 - 361 of 361

Thermal and Mass Diffusion in a Semidilute Good Solvent-Polymer Solution

August 1, 1999
Author(s)
K J. Zhang, M E. Briggs, R W. Gammon, J V. Sengers, Jack F. Douglas
The Soret coefficient S T and collective (mass) diffusion coefficient D c of polystyrene dissolved in the good solvent toluene is measured over a range of concentrations and molecular weights using an optical beam deflection method. Our measurements

Mean-Field-Scaling in Lattice Boltzmann Fluid Mixtures

June 1, 1999
Author(s)
Nicos Martys, Jack F. Douglas
Basic equilibrium properties of Lattice Boltzmann (LB) fluid mixtures (coexistence curve, surface tension, and interfacial profile) are calculated to characterize the critical phenomena occurring in these model liquids and to establish a reduced variable

Integral Equation Approach to Condensed Matter Relaxation

January 1, 1999
Author(s)
Jack F. Douglas
A model of relaxation in supercooled and polymer liquids is developed starting from an integral equation describing relaxation in liquids near thermal equilibrium and probabilistic modeling of the dynamic heterogeneity presumed to occur in these complex

Spinodal Dewetting of Thin Polymer Films

August 1, 1998
Author(s)
R H. Xie, Alamgir Karim, Jack F. Douglas, Charles C. Han, Robert A. Weiss
Dewetting of polystyrene (PS) films on a silicon substrate is investigated as a function of film thickness, h. We observe the nucleation of holes in the early stage of dewetting for relatively thick films (h > 100 {Angstrom}), as observed previously, but

Preparation and Characterization of Polymer/Dendrimer Blends Progress Report 2/24/97

June 1, 1998
Author(s)
Eric J. Amis, Barry J. Bauer, F I. Groehn, T J. Prosa, Da-Wei Liu, K A. Barnes, C L. Jackson, B D. Viers, Alamgir Karim, Jack F. Douglas
Dendrimer, dendrigraft, and hyperbranched solutions, blends, and interpenetrating polymer networks are characterized by small neutron and x-ray scattering, reflectivity, atomic force microscopy, and transmission electron microscopy.

NIST Meeting on Multicomponent Polymers and Polyelectrolytes

March 1, 1998
Author(s)
Jack F. Douglas
A joint meeting was held between the NIST Polymer Blends and Processing Group and ERATO. The purpose of the conference was to review progress made by the NIST and ERATO groups in experimental and theoretical aspects of phase separation in polymer blends

Colliding Self-Assembly Waves in Organosilane Monolayers

Author(s)
K Efimenko, Ali Ozcam, Jan Genzer, Daniel A. Fischer, Frederick R. Phelan Jr., Jack F. Douglas
Colliding autocatalytic wave-fronts of organosilane (OS) layer self-assembly are generated through the controlled positioning of sources of the volatile OS material at the edges of a silica wafer and through adjustment of the container dimensions in which
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