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You searched on: Author: jack douglas

Displaying records 61 to 70 of 227 records.
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61. Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films
Published: 7/27/2006
Authors: Robert A Riggleman, K Yoshimoto, Jack F Douglas, J J de Pablo
Abstract: We investigate by molecular dynamics simulation how thin film confinementmodifies the fragility of a model glass-forming liquid characterized previously in the bulk. Film confinement is found to reduce the relative fragility of the polymer fluid, le ...

62. Nature of the Breakdown in the Stokes-Einstein Relationship in a Hard Sphere Fluid
Published: 6/1/2006
Authors: S K Kumar, Grzegorz Szamel, Jack F Douglas
Abstract: Molecular Dynamics simulations of high density hard sphere fluids clearly show a breakdown of the Stokes-Einstein equation (SE). This result has been conjectured to be due to the presence of mobile particles, i.e., ones which have the propensity to ...

63. Lattice Model of Equilibrium Polymerization: V. Scattering Properties and the Width of the Critical Regime for Phase Separation
Published: 4/1/2006
Authors: Kyunil Rah, Karl Freed, J Dudowicz, Jack F Douglas
Abstract: Dynamic clustering associated with self-assembly in many complex fluids can qualitatively alter the shape of their phase boundaries and produce large changes in the scale of critical fluctuations that are difficult to comprehend within the existing c ...

64. 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 ...

65. Entropy Theory of Polymer Glass-Formation Revisited. II. Influence of Mass, Pressure, and Size of Side Groups and Similarities to Equilibrium Polymerization
Published: 2/8/2006
Authors: J Dudowicz, Karl Freed, Jack F Douglas
Abstract: Recent measurements reveal striking trends in the variation of fragility (the strength of the temperature dependence of the fluid viscosity) of glass-forming polymer liquids with monomer structure and pressure. The elucidation of the physical origin ...

66. Dielectric Study of the Anti-Plasticization of Trehalose by Glycerol
Published: 1/1/2006
Authors: A Anopchenko, Tatiana Psurek, David Lloyd VanderHart, Jack F Douglas, Jan Obrzut
Abstract: Recent measurements have suggested that the antiplasticizing effect of glycerol on trehalose can significantly increase the preservation times of proteins stored in this type of preservative formulation. In order to better understand the physical ori ...

67. Lessons From Simulation Regarding the Control of Synthetic Self-Assembly
Published: 1/1/2006
Authors: Jack F Douglas, K VanWorkum
Abstract: We investigate the role of the particle potential symmetry on the form of self-assembly by Monte Carlo simulation with the particular view towards synthetically creating structures of prescribed form and function. We establish a general tendency for ...

68. Phase Field Theory Of Crystal Nucleation And Polycrystalline Growth: A Review
Published: 1/1/2006
Authors: L Granasy, P Pusztai, T Borzsonyi, G Toth, G - Tegze, James A Warren, Jack F Douglas

69. Symmetry, Equivalence and Molecular Self-Assembly
Published: 1/1/2006
Authors: K VanWorkum, Jack F Douglas

70. Nanoparticle Networks Reduces Flammability of Polymer Nanocomposites
Published: 12/1/2005
Authors: Takashi Kashiwagi, F Du, K Winey, Jack F Douglas, Richard H. Harris Jr., John R Shields
Abstract: Synthetic polymer materials are rapidly replacing more traditional materials such as steel, nonferrous metals and natural polymeric materials. Because these novel materials are combustible under certain conditions, their utilization often requires re ...

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