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

Displaying records 31 to 40 of 412 records.
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31. 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 ...

32. Atomic Force Microscopy Studies of Phase Ordering in Polymer Blends and Clay-Filled Systems
Topic: Polymers
Published: 8/1/2000
Authors: V Ferreiro, Jack F Douglas, Alamgir Karim, G Coulon
Abstract: Many industrial applications require a control of the morphology of thin polymer films. The morphology of thin polymer films depends on many factors : method of formation, tendency of film components to mix or dewet, the crystallization of film comp ...

33. Bioactive Surface Gradients to Control Cell Adhesion
Topic: Polymers
Published: 1/1/2005
Authors: Matthew Becker, Nathan D. Gallant, Eric J. Amis
Abstract: Incorporating discrete cell adhesion motifs onto substrates in a defined orientation with variable spacing and increasing concentration offers a robust strategy for measuring ligand dependent cell-material interactions and encouraging specific cell a ...

34. Block copolymer photonic gel for mechanochromic sensing
Topic: Polymers
Published: 9/19/2011
Authors: Edwin P Chan, Joseph J Walish, Edwin L Thomas, Christopher M Stafford
Abstract: In this work, we describe a strategy based on mechanochromic sensing, the coupling between mechanical and optical properties, of a block copolymer photonic gel. Although this phenomena has been observed in many materials, we demonstrate this concept ...

35. Block-copolymer photonic crystal gel for mechanical strain sensing
Topic: Polymers
Published: 2/13/2011
Authors: Edwin P Chan, Christopher M Stafford, Edwin L Thomas, Joseph Walish

36. Buckling Modes of Elastic Thin Films on Elastic Substrates
Topic: Polymers
Published: 1/1/2007
Authors: Haixia Mei, Jun Y. Chung, Honghui Yo, Christopher M Stafford, Rui Huang
Abstract: Subject to compression, a thin elastic film bonded to an elastic substrate can buckle. Two buckling modes have been observed. On a stiff substrate, the film buckles when it is partly delaminated from the substrate, resulting in localized buckle patte ...

Topic: Polymers
Published: 3/25/2011
Authors: Santanu S. Kundu, Atul S Bhangale, William E Wallace, Kathleen M. Flynn, Charles Martin Guttman, Richard Gross, Kathryn L Beers
Abstract: Enzymes immobilized on solid supports are increasingly used for chemical transformation because the process is greener and sustainable. Here we use microreactors to study enzyme catalyzed ring opening polymerization of -caprolactone to polyca ...

38. Cantilever Peel Measurements on Patterned Surfaces: Characterizing the Effect of Pattern Geometry and Void Space.
Topic: Polymers
Published: 2/21/2010
Authors: John A. Howarter, Edwin P Chan, Christopher M Stafford
Abstract: Microstructural and hierarchical patterns are able to enhance the fracture toughness of adhesive interfaces. This phenomenon has been observed naturally in the design of foot pads of insects and other small animals such as the gecko. By understandi ...

39. Capillary Instability in Nanoimprinted Polymer Films
Topic: Polymers
Published: 5/21/2009
Authors: Kyle J. Alvine, Yifu Ding, Hyun Wook Ro, Brian C. Okerberg, Alamgir Karim, Christopher L Soles, Jack F Douglas
Abstract: Capillary forces play an active role in defining the equilibrium structure of nanoscale structures. This effect can be especially pronounced in soft materials such as polymers near or above their glass transition temperatures where material flow is ...

40. Capillary Wave Dynamics of Thin Polymer films over Submerged Nanostructures
Topic: Polymers
Published: 11/16/2012
Authors: Christopher L Soles, Hyun Wook Ro, K. J. Alvine, Oleg Shpyrko, Yenling Dai, Alec Sandy, Suresh Narayanan
Abstract: The surface dynamics of thin molten polystyrene films supported by nanoscale periodic silicon line-space gratings were investigated with X-ray photon correlation spectroscopy. Surface dynamics over these nanostructures exhibit high directional aniso ...

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