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Author: jack douglas
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Displaying records 191 to 200 of 224 records.
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191. Suppression of Phase Separation Pattern Formation in Blend Films With Block Copolymer Compatibilizer
Published: 7/1/2003
Authors: Li Piin Sung, Jack F Douglas, Charles C. Dr. Han, Alamgir Karim
Abstract: We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can suppress the pattern formation that occurs in the blend films without block copolymer. This effect is observed even at very ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852060

192. Suppression of Surface Pattern Formation in Blend Films With Block Copolymer Surfactant
Published: 7/1/2003
Authors: Li Piin Sung, Jack F Douglas, Charles C. Dr. Han, Alamgir Karim
Abstract: We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can supppress the pattern formation that occurs in the blend films without block copolymer. This effect is obseved even at very ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851867

193. Swelling of Grafted Polymer Brushes
Published: Date unknown
Authors: Jack F Douglas, M S Kent, Sushil K. Satija, Alamgir Karim
Abstract: The end-grafting of polymer chains to surfaces provides a robust method for modifying surface properties. Such layers are increasingly being employed in applications-modifying the biocompatibility of implants, the wetting, adhesive and frictional pro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851771

194. Symmetry, Equivalence and Molecular Self-Assembly
Published: 1/1/2006
Authors: K VanWorkum, Jack F Douglas
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854006

195. Symmetry, Equivalence and Molecular Self-Organization
Published: 3/1/2006
Authors: K Van Workum, Jack F Douglas
Abstract: Abstract: Self-organization is central to the formation of numerous biological structures and the emulation of this process through the creation of synthetic counterparts offers great promise for nanofabrication. Our approach to understanding the pri ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852484

196. Temperature Effects on Surface Pattern Formation in Thin Block Copolymer Films
Published: Date unknown
Authors: A P Smith, Jack F Douglas, Eric J. Amis, Alamgir Karim
Abstract: Hole formation on the surface of thin films of symmetric diblock copolymers is investigated as a function of time, t, temperature, T, and film thickness, h. The size of the holes approaches a steady state value at long times and their long-time size ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852214

197. The Critical Role of Solvent Evaporation on the Roughness of Spin-Cast Polymer Films
Published: 1/1/2001
Authors: K E Strawhecker, S K Kumar, Jack F Douglas, Alamgir Karim
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853796

198. The Dynamics of Confined Polycarbonate Chains Probed with Incoherent Neutron Scattering
Published: 1/1/2001
Authors: Christopher L Soles, Jack F Douglas, Robert M. Dimeo
Abstract: The mean-square atomic displacement of thin (1015 to 75 ) polycarbonate films supported on Si wafers is measured using incoherent elastic neutron scattering. The value of is determined by fitting the scattering intensity data to the D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851907

199. The Effect of Nanoparticle Shape on Polymer-Nanocomposite Rheology and Tensile Strength
Published: 2/23/2007
Authors: Scott Knauert, Jack F Douglas, Francis W. ~undefined~undefined~undefined~undefined~undefined Starr
Abstract: Nanoparticles can influence the properties of polymer materials by a variety of mechanisms. The molecular dynamics simulations in the present work focus on the case where the modification of the melt structure by glass-formation and entanglement inte ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852679

200. The Effect of Temperature on the Morphology and Kinetics of Surface Pattern Formation in Thin Block Copolymer Films
Published: 10/29/2007
Authors: A P Smith, Jack F Douglas, Eric J. Amis, Alamgir Karim
Abstract: Hole formation and size evolution on the surface of thin films of symmetric diblock copolymers is simultaneously investigated as a function of time, t, temperature, T, and film thickness, h. The hole size h approaches a steady state value at long ti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852729



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