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Author: jack douglas

Displaying records 191 to 200 of 224 records.
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191. Integral Equation Approach to Condensed Matter Relaxation
Published: 1/1/1999
Author: Jack F Douglas
Abstract: 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 comp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851512

192. Model for the Viscosity of Particle Dispersions
Published: 1/1/1999
Authors: J Bicerano, Jack F Douglas, D A Brune
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853686

193. Spinodal Dewetting of Thin Polymer Films
Published: 8/1/1998
Authors: R H Xie, Alamgir Karim, Jack F Douglas, Charles C. Dr. Han, R A Weiss
Abstract: 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, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852828

194. Preparation and Characterization of Polymer/Dendrimer Blends Progress Report 2/24/97
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6183
Published: 6/1/1998
Authors: 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
Abstract: 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.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851476

195. NIST Meeting on Multicomponent Polymers and Polyelectrolytes
Series: Journal of Research (NIST JRES)
Published: 3/1/1998
Author: Jack F Douglas
Abstract: 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 bl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851431

196. Both Chain Conformation and Intermolecular Interactions Determine the Rheology of Highly Concentrated Bovine Serum Albumin Solutions
Published: Date unknown
Authors: Prasad Srinivasan Sarangapani, Steven D Hudson, Ronald Leland Jones, Jack F Douglas, Jai Avinash Pathak
Abstract: Several decades of studies of protein solution hydrodynamics/rheology and thermodynamics have reinforced a colloidal view of these ,particles‰: this viewpoint ignores the wide range of conformational states of proteins. Bovine serum albumin (BSA) i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915903

197. Colliding Self-Assembly Waves in Organosilane Monolayers
Published: Date unknown
Authors: K Efimenko, Ali Ozcam, Jan Genzer, Daniel A Fischer, Frederick R Phelan Jr, Jack F Douglas
Abstract: 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903663

198. Comparison of Methods for Calculating the Friction Coefficient and Intrinsic Viscosity of Nanoparticles and Macromolecules
Published: Date unknown
Authors: M Mansfield, Jack F Douglas, Saba Irfan, E Kang
Abstract: Various methods have been proposed to estimate the translational friction coefficient f and the intrinsic viscosity [?] of polymers and other particles of complex shape. These methods range from first-principles calculations based on a precise desc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852612

199. Coping With Complex Surfaces: An Interface Between Mathematics and Condensed Matter Physics
Published: Date unknown
Author: Jack F Douglas
Abstract: A transcript of a talk on the application of mathematics to materials science is presented. The talk considers the application of random walk methods to solving boundary value problems with complex boundaries, as found in applications to polymer and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851513

200. Coupling Between Phase Separation and Surface Deformation Modes in Self-Organizing Polymer Blend Films
Published: Date unknown
Authors: B D Ermi, G Nisato, Jack F Douglas, J Rogers, Alamgir Karim
Abstract: Phase separation of ultrathin polymer blend films spun cast onto patterned self-assembled monolayers is examined by atomic force microscopy. Fourier transform analysis of the time evolution of the film topography reveals a coupling between the phase ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851478



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