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Topic Area: Polymers
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Displaying records 31 to 40 of 537 records.
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31. 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. ...

32. 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 ...

33. An Operator-Independent Approach to Mass Spectral Peak Identification and Integration
Topic: Polymers
Published: 5/1/2004
Authors: William E Wallace III, Anthony J Kearsley, Charles Martin Guttman
Abstract: A mathematical algorithm is presented that accurately locates and calculates the area beneath mass spectral peaks using only reproducible mathematical operations and a NO user-selected sensitivity parameters. This represents a major refinement of la ...

34. 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 ...

35. 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 ...

36. Analyzing a Co-Polymer Aramid Fiber for Use in Soft Body Armor
Topic: Polymers
Published: 10/25/2013
Authors: Walter G McDonough, Jae Hyun Kim, Nathanael A Heckert, Amanda Lattam Forster, Scott A Wight, Joy P Dunkers, Gale Antrus Holmes
Abstract: Since the well-publicized failure of body armor used by a police officer, it has become imperative that the long-term properties and performance of new fibers being considered for use be understood. The range of interest is from the molecular proper ...

37. Anisotropic Wetting on Tunable Micro-Wrinkled Surfaces
Topic: Polymers
Published: 1/1/2007
Authors: Jun Y. Chung, Jeffrey Youngblood, Christopher M Stafford
Abstract: We demostrate that the buckling instability technique is promising for studying wettability because key elements of surface topography such as surface roughness can be precisely controlled by simple changes in experimental conditions. For demonstrat ...

38. 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 L 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 ...

39. 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. ...

40. Assessing and Improving Bonding in Wet Conditions
Topic: Polymers
Published: 4/3/2010
Authors: Kar Tean 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 ...

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