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Topic Area: Polymers

Displaying records 461 to 470 of 537 records.
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461. Dendrimer Templates for the Formation of Gold Nanoclusters
Topic: Polymers
Published: 8/1/2000
Authors: Franziska Grohn, Barry J. Bauer, Y A Akpalu, C L. Jackson, Eric J. Amis
Abstract: Charged poly(amidoamine) (PAMAM) dendrimers are used to create organic-inorganic hybrid colloids in aqueous solution. The formation of gold colloids upon reduction of a gold salt precursor serves as a model reaction to study the influence of reaction ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851679

462. Numerical Simulation of Liquid Composite Injection/Compression Moding. Part 1: Mesh Generation
Topic: Polymers
Published: 6/14/2000
Authors: K M Pillai, C L Tucker, Frederick R Phelan Jr
Abstract: This paper presents a numerical simulation of the injection/compression type of liquid composite molding (LCI/CM), where the fiber preform is compressed to a desired degree at the same time as the resin is being injected into the mold. Due to the po ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851464

463. Critical Issues in the Characterization of Polymers for Medical Applications
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6535
Topic: Polymers
Published: 6/1/2000
Authors: Walter G McDonough, Eric J. Amis, J Kohn
Abstract: On June 14, 2000, the New Jersey Center for Biomaterials and the Polymers Division of the National Institute of Standards and Technology (NIST) co-sponsored a one-day workshop on Critical Issues in the Characterization of Polymers for Medical Applica ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851793

464. Surface Morphology Variations in MALDI-TOF-Mass Spectrometry Samples Prepared by Various Techniques Examined by Scanning Electron Microscopy
Topic: Polymers
Published: 6/1/2000
Authors: William R. Blair, Charles Martin Guttman, A A Guiseppetti
Abstract: Continuing interest at NIST (National Institute of Standards and Technology) in producing MALDI (Matrix Assisted Laser Desorption/Ionization) analyses with a mimimum of sample to sample signal variation has led to the comparison of hand spotting, spi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851759

465. Effect of Water Exposure Cycles on Physical Properties of a Partical-Filled, Epoxy-Based Adhesive
Topic: Polymers
Published: 5/1/2000
Authors: Martin Y Chiang, M Fernandez-Garcia, E M Yorkgitis
Abstract: The effect of cyclic hygrothermal aging on a particle-filled, epoxy-based adhesive was studied using a sequence of water absorption, desorption and reabsorption at different temperatures. Moisture sorption characteristics were explored by measuring t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851724

466. MALDI-TOF MS Analysis of a Library of Polymerizable Cyclodextrin Derivatives
Topic: Polymers
Published: 4/1/2000
Authors: Rafael L. Bowen, M Farahani, Sabine Hilla Dickens, Charles Martin Guttman
Abstract: Polymerizable cyclodextrin derivatives (PCDs) have been proposed as candidates for use in dental therapeutics (Bowen, 1996 and Bowen and Reed, 1997). Here PCD libraries were synthosized by quasi-random reactions of 6 moles of methacrylic anhydride pl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851590

467. Physical Aging of Amorphous PEN: Isothermal, Isochronal and Isostructural Results
Topic: Polymers
Published: 4/1/2000
Authors: M L Cerrada, G B. McKenna
Abstract: The viscoelastic and physical aging responses have been analyzed for an amorphous poly(ethylene naphthalate) (PEN) using uniaxial tension stress relaxation experiments. It is known that PEN exhibits a strong {beta} relaxation that overlaps the {alp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851586

468. Polymer Division Technical Activities - 1999
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6435
Topic: Polymers
Published: 4/1/2000
Authors: Eric J. Amis, B M Fanconi
Abstract: Technical activities of the Polymers Division, 854, for the 1999 fiscal year are described. The report is organized by programs: Electronic Packaging, Interconnection and Assembly; Polymer Blends and Processing; Polymer Composites; Polymer Characte ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851677

469. A Direct Comparison of SANS and DET for Polymer Diffusion During Polystyrene Latex Film Formation
Topic: Polymers
Published: 3/1/2000
Authors: S D Kim, E M Boczar, Barry J. Bauer, A Klein, L H Sperling
Abstract: Polystyrene latex film is a model system for the study of interdiffusion in polymers. Small-angle neutron scattering (SANS) and a direct nonradiative energy transfer technique (DET) are widely used to study the interdiffusion of polymers in latex fil ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851660

470. Determination of the Molecular Mass Distribution of Narrow Polydispersity Polystyrene by MALDI-TOF-MS: Interlaboratory Comparison
Topic: Polymers
Published: 3/1/2000
Authors: Kathleen M. Flynn, S Wetzel, William E Wallace III, William R. Blair, R J Goldschmidt, David Lloyd VanderHart, B M Fanconi
Abstract: NIST has sponsored a matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) interlaboratory comparison using a well-characterized polystyrene to determine the reproducibility in determining the molecular mass dis ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851652



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