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Topic Area: Polymers
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Displaying records 491 to 500 of 547 records.
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491. Synthesis and Characterization of PEG and PEG Urethane Dimethacrylate Hydrogels
Topic: Polymers
Published: 3/1/2004
Authors: Sheng Lin-Gibson, S Bencherif, James A. Cooper, N. R. Washburn, Joseph M Antonucci
Abstract: A key area in the repair and regeneration of tissues is optimizing the polymeric scaffold-tissue response. This study is designated to better understand the relationships between polymer matrix structure and properties to cell response. The current s ...

492. Synthesis and Characterization of Poly(ethylene glycol) Dimethacrylate Hydrogels
Topic: Polymers
Published: 1/1/2005
Authors: Sheng Lin-Gibson, S Bencherif, Joseph M Antonucci, Horkay F JonesRL
Abstract: Facile synthesis and detailed characterization of photo-polymerizable and biocompatible poly(ethylene glycol) dimethacrylates (PEGDM) and their hydrogels are described. Combined analyses of 1H NMR and MALDI-TOF MS confirmed the formation of prepolyme ...

493. Synthesis and Characterization of Polymer Brushes from PDMS Surfaces
Topic: Polymers
Published: 4/6/2008
Authors: Heqing Huang, Adam J. Nolte, Jun Y. Chung, Christopher M Stafford
Abstract: In recent years, poly(dimethylsiloxane) (PDMS) has found increased application in the areas of microfluidic devices, chromatographic packing materials and membranes, as well as in medical and drug delivery devices. However, the hydrophobic surface of ...

494. Synthesis and Characterization of Tapered Copolymer Brushes via Surface-Initiated Atom Transfer Radical Copolymerization
Topic: Polymers
Published: 11/1/2005
Authors: Chang Xu, Tao Wu, Ying Mei, Charles M Drain, J Batteas, Kathryn L Beers
Abstract: Tapered copolymer brushes of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) were synthesized via surface-initiated atom transfer radical polymerization (ATRP) by gradual addition of HEMA to a reaction mixture that originally only ha ...

495. Synthesis and characterization of model crosslinked polyamide films for water purification
Topic: Polymers
Published: 6/24/2012
Authors: Peter M. Johnson, Edwin P Chan, Jun Y. Chung, Junghyun Lee, Christopher M Stafford
Abstract: Reverse osmosis (RO) and nanofiltration (NF) membranes are comprised of a dense active layer supported by a porous support. Commercial active layer are highly crosslinked polyamides that are formed through interfacial polymerization directly on the s ...

496. Synthesis of Gradient Copolymer Brushes via Surface Initiated Atom Transfer Radical Copolymerization
Topic: Polymers
Published: 1/1/2005
Authors: Chang Xu, Tao Wu, Charles M Drain, J Batteas, Kathryn L Beers
Abstract: Gradually altering the monomer composition of the polymerization mixture, surface initiated atom transfer radical polymerization was used to synthesize gradient copolymer brushes of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) fro ...

497. Synthesis of Multifunctional Polymer Brushes via Sequential and Orthogonal Thiol-Click Reactions
Topic: Polymers
Published: 11/14/2011
Authors: Santosh B Rahane, Ryan M Hensarling, Bradley J Sparks, Christopher M Stafford, Derek L Patton
Abstract: Fabrication of multifunctional surfaces with complexity approaching that found in nature requires the application of a modular approach to surface engineering. We describe a versatile post-polymerization modification strategy to synthesize multifunc ...

498. Synthesis of Thiol-Clickable and Block Copolypeptide Brushes via Nickel-Mediated Surface Initiated Polymerization of alpha-Amino Acid N-Carboxyanhydrides (NCAs)
Topic: Polymers
Published: 3/31/2011
Authors: Bradley J Sparks, Jacob G Ray, Daniel A Savin, Christopher M Stafford, Derek L Patton
Abstract: We describe the synthesis of homo-, block, and clickable co-polypeptide brushes from low surface area substrates using nickel-mediated surface-initiated polymerization of alpha-amino N-carboxyanhydrides.

499. Temperature Dependence of Fluorescent Probes for Applications to Polymer Materials Processing
Topic: Polymers
Published: 2/1/2002
Authors: Anthony J. Bur, M Vangel, S C Roth
Abstract: We have examined the temperature dependence of fluorescence spectra from dyes that can be used as molecular probes during polymer processing. The dyes, perylene and benzoxazolyl stilbene, are in a class of dyes called band definition dyes because th ...

500. Temperature Effects During Capillary Rheometry Testing
Topic: Polymers
Published: 5/1/2002
Authors: Anthony J. Bur, S C Roth, H Lobo
Abstract: A non-contact temperature monitoring technique based on fluorescence spectroscopy was used to measure the temperature of a polymer resin during capillary rheometry testing. Polyethylene and polycarbonate doped with a fluorescent dye, perylene, were ...

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