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Displaying 126 - 136 of 136

The Role of Solid State 13 C NMR Spectroscopy in Studies of the Nature of Native Celluloses

October 1, 1999

Author(s)

R H. Atalla, David L. VanderHart

Published spectroscopic observations pertaining to the crystal structure of native celluloses are reviewed for the purpose of defining our current level of understanding about crystalline polymorphy in these materials. Emphasis is placed on observations

Comparison of Classical and MALDI-TOF-MS Analysis of a Polystyrene Interlaboratory Sample

January 1, 1999

Author(s)

William R. Blair, B M. Fanconi, R J. Goldschmidt, Charles M. Guttman, William E. Wallace, S Wetzel, David L. VanderHart

Over the past several years, the use of MALDI-TOF-MS for analysis of synthetic polymers has increased significantly. As the number of polymer analyses by MALDI has increased, scrutiny of the MALDI results in comparison to classically derived values for Mw

The Role of Solid State C-13 NMR Spectroscopy in Studies of the Nature of Native Celluloses

January 1, 1999

Author(s)

R H. Atalla, David L. VanderHart

Thermal and Structural Behavior of Metallocene-Type Random Propylene Copolymers.

January 1, 1999

Author(s)

R G. Alamo, J R. Isasi, M S. Kim, L Mandelkern, David L. VanderHart

Characterization of Flame Retarded Polymer Combustion Chars by Solid-State 13C and 29Si NMR and EPR.

March 31, 1998

Author(s)

Jeffrey W. Gilman, Takashi Kashiwagi, David L. VanderHart, S M. Lomakin, V Nagy

Additives that increase the amount of charcoal-like residue of carbonaceous char that forms during polymer combustion are very effective fire retardants. However, very little is understood about the detailed structure of char or how it forms. Our research

Char Enhancing Approaches to Polymer Flammability: The Effect of Radicals on Magic Angle Spinning 13C NMR of Chars.

October 28, 1996

Author(s)

Jeffrey W. Gilman, Takashi Kashiwagi, David L. VanderHart, S M. Lomakin, V Nagy

Additives that increase the amount of charcoal-like residue or carbonaceous char that forms during polymer combustion are very effective fire retardants. However, very little is understood about the detailed struture of char or how it forms. Our research

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