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Topic Area: Polymers
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Displaying records 31 to 40 of 546 records.
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31. Anisotropic, Hierarchical Surface Patterns via Surface Wrinkling of Nanoimprinted Polymer Films
Topic: Polymers
Published: 10/22/2012
Authors: Junghyun Lee, Hyun W. 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 ...

32. Controlling Thermochromism in a Photonic Block Copolymer Gel
Topic: Polymers
Published: 9/26/2012
Authors: Joseph J Walish, Yin Fan , Andrea Centrone, Edwin L. Thomas
Abstract: Controlling the color via temperature-induced changes of self-assembled photonic materials is important for their application in sensors and displays. The thermochromic behavior of a PS-P2VP photonic gel was studied (UV-VIS, FTIR) and found to origin ...

Topic: Polymers
Published: 8/19/2012
Authors: Matthew T. (Matthew) Hunley, Fahriye Nese Sari, Kathryn L Beers
Abstract: As the research interest in degradable polymers has risen, an ever increasing number of manuscripts report the synthesis of copolymers through ring-opening copolymerization techniques. However, the mechanism of copolymerization remains unexplored. ...

34. 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 ...

35. Pronounced micro-segregation in a sorbitol water mixture observed through variable temperature neutron scattering
Topic: Polymers
Published: 5/16/2012
Authors: Shin G. Chou, Sheila Khodadadi, Joseph Curtis, Susan T Krueger, Evgenyi Shalaev, Alan Soper, Andy Fitch, T Narayanan, Michael Szutucki, Marcus T Cicerone
Abstract: In this study, we use small and wide angle X-ray and neutron scattering measurements, to study the structure of concentrated sorbitol solutions and glasses at different temperatures. The analysis of the data suggests the water forms clusters with a ...

36. Optimization of Imaging Polymer Based Scaffolds Using X-Ray Microcomputed Tomography
Topic: Polymers
Published: 5/15/2012
Authors: David E, Morris, Melissa L Mather, Carl George Simon Jr, John A Crowe
Abstract: The performance of polymer based scaffolds used in regenerative medicine is linked to their structural properties and as such strategies for structural characterization of scaffolds have been developed. X-ray microscopic computed tomography (X-ray ...

37. Neutron reflectivity characterization of the photoacid reaction-diffusion latent and developed images of molecular resists for extreme-ultraviolet lithography
Topic: Polymers
Published: 5/11/2012
Authors: Vivek M Prabhu, Shuhui Kang, Wen-Li Wu, Sushil K. Satija, Christopher K. Ober, Jing Sha, Peter V. Bonnesen
Abstract: Lithographic feature size requirements have approached a few radius of gyration of chemically-amplified photoresist polymers used in thin film patterning. Further, the feature dimensions are commensurate with the photoacid diffusion length that defin ...

38. Inelastic Neutron Scattering on Polymer Electrolytes for Lithium-Ion Batteries
Topic: Polymers
Published: 5/7/2012
Authors: Huagen H. Peng, Madhusudan Tyagi, Kirt Anthony Page, Christopher Soles
Abstract: The relationship between ion transport and polymer dynamics is central to the pursuit of solid polymer electrolytes for lithium batteries. This understanding is critical to achieve solid polymer electrolyte systems of sufficiently high ion conductiv ...

39. Gas-Foamed Scaffold Gradients for Combinatorial Screening in 3D
Topic: Polymers
Published: 5/1/2012
Authors: Carl George Simon Jr, Kaushik Chatterjee, Alison McGibbon Kraigsley, Joachim Kohn, Durgadas Bolikal
Abstract: Current methods for screening cell-material interactions typically utilize two-dimensional (2D) culture format where cells are cultured on flat surfaces. However, there is a need for combinatorial and high-throughput screening methods to systematica ...

40. Osteoblast Response to Serum Protein Adsorption in 3D Polymer Scaffolds
Topic: Polymers
Published: 5/1/2012
Authors: Carl George Simon Jr, Girish Kumar, Kaushik Chatterjee, Stevephen Hung
Abstract: Protein adsorption is known to direct biological response to biomaterials and is important in determining cellular response in tissue scaffolds. In this study we investigated the effect of adsorbed serum proteins on cell attachment and proliferation ...

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