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Displaying 701 - 725 of 3439

Evolution of Dendrimer Conformational Structure with Generation Number

June 20, 2016
Author(s)
Beatriz A. Pazmino, Jack F. Douglas
We simulate the conformational structure of a coarse-grained model of dendrimer molecules in good solvent as a function of generation number G and find that they evolve through a substantially more complex structures than regular star polymer with

How to measure absolute P3HT crystallinity via 13C CPMAS NMR

April 20, 2016
Author(s)
Ryan C Nieuwendaal
We outline the details of acquiring quantitative 13C cross-polarization magic angle spinning (CPMAS) NMR spectra on the most ubiquitous polymer for organic electronics (OE) applications, poly(3-hexylthiophene) (P3HT), despite other groups’ claims that

Structural control of mixed ionic and electronic transport in conducting polymers

April 17, 2016
Author(s)
Jonathan Rivnay, Sahika Inal, Brian Collins, Michelle Sessolo, Eleni Stavrindou, Christopher Tassone, Dean DeLongchamp, George Malliaras
Poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate), PEDOT:PSS, has been utilized for over two decades as a stable, solution-processable conductor. While electrical properties have been the subject of intense materials investigation, recent

Super Stiff and Highly Transparent Multilayer Thin Films Prepared through Hydrogen-Bonding Layer- by-Layer Assembly of Graphene and Polymer

February 8, 2016
Author(s)
Fangming Xiang, Dorsa Parviz, Tara M. Givens, Ping Tzeng, Eric Davis, Christopher Stafford, Micah J. Green, Jaime C. Grunlan
Since its discovery in 2004, graphene has been intensely studied due to its high elastic modulus, thermal conductivity, electrical conductivity, and gas impermeability. Although it is possible to use small quantities of graphene sheets for fundamental

Morphological origins of polarization-induced scattering anisotropy from organic thin films

January 14, 2016
Author(s)
Eliot Gann, Brian A. Collins, Maolong Tang, John R. Tumbleston, Subhrangsu Mukherjee, Harald W. Ade
Anisotropic scattering patterns have been observed from organic thin films that are isotropic on the scale of the probe in polarized resonant X-ray scattering experiments. The symmetry is broken by local correlations between molecular orientation and

ASTM Workshop on Standards & Measurements for Tissue Engineering Scaffolds

January 1, 2016
Author(s)
Carl G. Simon Jr., John Test, Michael Yaszemski, Reto Luginbuehl, Anthony Ratcliffe, Paul Tomlins
A “Workshop on Standards & Measurements for Tissue Engineering Scaffolds” was held on May 21, 2013 and was sponsored by the American Society of Testing and Materials International (ASTM International) in Indianapolis, IN. The purpose of the workshop was to

The Occurrence of Repeated Fiber Breaks in Microcomposites

November 10, 2015
Author(s)
Gale A. Holmes, Edward D. McCarthy, Nathanael A. Heckert, Stefan D. Leigh, Jae Hyun Kim, Jeffrey W. Gilman
The mechanical integrity of a structural composite is strongly affected by the strength and toughness of the fiber–matrix interface/interphase (Norwood, 1994), with interfacial shear strength (IFSS) considered the best quantifying metric. IFSS outputs are
Displaying 701 - 725 of 3439
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