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You searched on: Topic Area: Polymers Sorted by: title

Displaying records 21 to 30 of 407 records.
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21. Adhesion research at the National Institute of Standards and Technology (NIST)
Topic: Polymers
Published: 4/1/2010
Authors: Christopher M Stafford, Adam J. Nolte, Gale Antrus Holmes, Sheng Lin-Gibson, John A. Howarter
Abstract: NIST s involvement in adhesion research has been wide ranging and is ultimately in response to interactions between individual project leaders and our industrial partners. In this way, NIST s participation in the Adhesion Society has been instrument ...

22. Airbrushed Nanofiber Scaffolds Support Bone Marrow Stromal Cell Differentiation
Topic: Polymers
Published: 11/1/2013
Authors: Carl George Simon Jr., Wojtek J Tutak, Sumona Sarkar, Tanya M. Farooque, Jyotsnendu J. Giri, Dongbo Wang, Sheng Lin-Gibson, Joachim Kohn, Durgadas Bolikal
Abstract: Nanofiber scaffolds are effective for tissue engineering since they emulate the fibrous nanostructure of native extracellular matrix (ECM). Although electrospinning has been the most common approach for fabricating nanofiber scaffolds, airbrushi ...

23. Amorphous Calcium Phosphate/Urethane Methacrylate Resin Composites. I. Physicochemical Characterization
Topic: Polymers
Published: 5/7/2007
Authors: William Regnault, Tonya Icenogle, Joseph M Antonucci, Drago Skrtic
Abstract: Urethane dimethacrylate (UDMA), an oligomeric poly(ethylene glycol) UDMA (PEG-U) and a blend of UDMA/PEG-U were chosen as model systems for introducing both hydrophobic and hydrophilic segments and a range of compliances into their derived polymers. ...

24. An Improved Synthesis of Ethyl Alpha-Hydroxymethylacrylate, a Unique Isomeric Analog of HEMA
Topic: Polymers
Published: 8/1/2000
Authors: Joseph M Antonucci, J W Stansbury, Bruce Owen Fowler
Abstract: HEMA is widely used in dental adhesives, bioactive composites and resin-modified glass ionomer cements. In its polymeric forms it is used in a number of biomedical applications, e.g. hydrogels for controlled-release, soft contact lenses, vascular gr ...

25. An Optical Sensor for Polymer Injection Molding
Topic: Polymers
Published: 1/1/2000
Authors: Anthony J. Bur, C L Thomas
Abstract: An optical sensor using fiber optics to access the mold cavity was used to monitor the mold filling and cooling phases of injection molding. The sensor consists of a sapphire window at the end of a sleeved ejector pin into which an optical fiber is ...

26. An automated spin-assisted approach for molecular layer-by-layer assembly of crosslinked polymer thin films
Topic: Polymers
Published: 11/28/2012
Authors: Edwin P Chan, Jung-Hyun Lee, Jun-Young Chung, Christopher M Stafford
Abstract: We present the design of an automated spin-coater that facilitates fabrication of polymer films based on molecular layer-by-layer (mLbL) assembly. Specifically, we demonstrate the synthesis of ultrathin crosslinked fully-aromatic polyamide films ...

27. Anisotropic, Hierarchical Surface Patterns via Surface Wrinkling of Nanoimprinted Polymer Films
Topic: Polymers
Published: 10/22/2012
Authors: Junghyun Lee, Hyun Wook Ro, Rui Huang, Thomas Avery Germer, Paul Lemaillet, Christopher Soles, Christopher M Stafford
Abstract: we demonstrated the wrinkling behavior of nanopatterned PS films, whose wrinkle wavelength and resultant morphology depend strongly on geometric parameters of surface patterns as well as the direction of the applied strain relative to the nanopattern ...

28. Application of a Buffer Layer for the Dielectric Measurement of Thin Polymer Films
Topic: Polymers
Published: 1/1/2002
Authors: C. K. Chiang, W Sakai
Abstract: A buffered dielectric measurement method was described. We added a thin buffer polymer layer to a polymer film before depositing aluminum electrodes. This is a modification to conventional parallel plate dielectric constant measurement method. ...

29. Assessing and Improving Bonding in Wet Conditions
Topic: Polymers
Published: 4/3/2010
Authors: Kar T. Tan, Christopher C White, Donald Lee Hunston, Vogt D Bryan, Anthony Haag
Abstract: Water is ubiquitous in any uncontrolled setting and affects world wide commerce by instigating device and structural failures. This can be a result of corrosion, electrical shorting, or adhesive failure. For adhesive failure, the environmental attack ...

30. Assessment of Sandwich Beam in Three-Point Bending for Measuring Adhesive Shear Modulus
Topic: Polymers
Published: 7/1/2001
Authors: J M He, Martin Y Chiang, Donald Lee Hunston
Abstract: A finite element analysis (FEA) was conducted to examine the feasibility of determining the shear modulus of an adhesive in a bonded geometry using a three-point bending test on a sandwich beam specimen. This specimen consists of two substrate b ...

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