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Displaying 51 - 75 of 136

INVESTIGATION OF NANODISPERSION IN POLYSTYRENE -MONTMORILLONITE NANOCOMPOSITES BY SOLID STATE NMR

December 15, 2003
Author(s)
S Bourbigot, Jeffrey W. Gilman, David L. VanderHart, W H. Awad, Rick D. Davis, A B. Morgan, C A. Wilkie
Nanocomposites result from combinations of materials with vastly different properties at the nanometer scale. These materials exhibit many unique properties, such as improved thermal stability, reduced flammability, and improved mechanical properties. Many

Certification of a Polystyrene Synthetic Polymer, SRM 2888

November 1, 2003
Author(s)
Charles M. Guttman, William R. Blair, B M. Fanconi, R J. Goldschmidt, William E. Wallace, S Wetzel, David L. VanderHart
The certification of a polystyrene standard reference material, SRM 2888, is described. The M w of SRM 2888 was determined by light scattering to be 7.19 x 10 +3 g/mol with a sample standard deviation of 0.14 x 10 +3 g/mol. A combined expanded uncertainty

High Throughput Methods for Polymer Nanocomposites Research: Extrusion, Nmr Characterization and Flammability Property Screening.

November 1, 2003
Author(s)
Jeffrey W. Gilman, S Bourbigot, John R. Shields, Marc R. Nyden, Takashi Kashiwagi, Rick D. Davis, David L. VanderHart, W Demory, C A. Wilkie, A B. Morgan, J R. Harris, R Lyon
Several, recent, revolutionary advances in combinatorial (or high throughput, HT) polymer science have appeared in the literature, which significantly accelerate the rate of data generation. Although these new HT approaches may in part have been inspired

MALDI-TOF MS Characterization of Covalent Cationized Polyethylene

August 1, 2003
Author(s)
Sheng Lin-Gibson, D L. Brunner, David L. VanderHart, Barry J. Bauer, B M. Fanconi, Kathleen M. Flynn, William E. Wallace
MALDI-TOF MS generally uses metal salts to cationize synthetic polymers, such as polystyrene. However, reduced analyte signal often results from complications during the metal ionization processes in the gas phase including competition between the analyte
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