Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Brett A. Beiermann"'
Autor:
Sharlotte L. B. Kramer, Scott R. White, Nancy R. Sottos, Jeffrey S. Moore, Brett A. Beiermann
Publikováno v:
ACS macro letters. 1(1)
The orientation of force-sensitive chemical species (mechanophores) in bulk polymers was measured via the anisotropy of fluorescence polarization. Orientation measurements were utilized to investigate the role of mechanophore alignment on mechanicall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::749460b171b2b4f20c68b4791fb73bd2
https://pubmed.ncbi.nlm.nih.gov/35578495
https://pubmed.ncbi.nlm.nih.gov/35578495
Autor:
Jeffrey S. Moore, Brett A. Beiermann, Nancy R. Sottos, Scott R. White, Preston A. May, Asha-Dee N. Celestine
Publikováno v:
Polymer. 55:4164-4171
Fracture-induced mechanochemical activation is achieved for the first time in a structural engineering polymer. Rubber toughened PMMA is lightly cross-linked (1.0 mol%) with the mechanophore spiropyran by free radical polymerization. Single Edge Notc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d4cfc665f96b7c1978dbd4f65873a5
https://doi.org/10.1016/j.polymer.2014.06.019
https://doi.org/10.1016/j.polymer.2014.06.019
Publikováno v:
ACS Applied Materials & Interfaces. 6:5350-5355
Thin films of mechanochemically active polymer were subjected to laser-generated, high amplitude acoustic pulses. Stress wave propagation through the film produced large amplitude stresses (100 MPa) in short time frames (10-20 ns), leading to very hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a08908e029a77c2c12a50b3ae28d31a
https://doi.org/10.1021/am406028q
https://doi.org/10.1021/am406028q
Autor:
Meredith N. Silberstein, Nancy R. Sottos, Sharlotte L. B. Kramer, Lee D. Cremar, Todd J. Martínez, Scott R. White, Brett A. Beiermann
Publikováno v:
Journal of the Mechanics and Physics of Solids. 63:141-153
Mechanically induced chemical reactivity is a promising means for designing self-sensing and autonomous materials. Force sensitive chemical groups called mechanophores can be covalently linked into polymers in order to trigger specific chemical react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f16e12327172f9930c2fc9273aecd70
https://doi.org/10.1016/j.jmps.2013.09.014
https://doi.org/10.1016/j.jmps.2013.09.014
Autor:
Nancy R. Sottos, Jeffrey S. Moore, Preston A. May, Scott R. White, Brett A. Beiermann, Sharlotte L. B. Kramer
Publikováno v:
Advanced Functional Materials. 24:1529-1537
Simultaneous measurements of mechanical response, optical birefringence, and fl uorescence signal are acquired in situ during tensile testing of a mechanophore-linked elastomeric polymer. Mechanical stress, deformation, and polymer chain alignment ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84c1d640c0f436ef3cc918fe6fa17573
https://doi.org/10.1002/adfm.201302341
https://doi.org/10.1002/adfm.201302341
Autor:
Corissa K. Lee, Meredith N. Silberstein, Brett A. Beiermann, Nancy R. Sottos, Jeffrey S. Moore, Paul V. Braun, Joanna Wang
Publikováno v:
Macromolecules. 46:3746-3752
Spiropyran (SP) mechanophore was synthesized into the soft or hard phase of segmented polyurethanes (SPU) and used as a molecular probe of force and orientation. Upon either tensile stretching or irradiation with UV light the SP-linked segmented poly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03647ec8fbee5e2e20e243925fe315b7
https://doi.org/10.1021/ma4005428
https://doi.org/10.1021/ma4005428
Publikováno v:
Experimental Mechanics. 53:1343-1355
Phase-stepped photoelasticity is a powerful method for full-field stress analysis, but sequential collection of the multiple required images limits the technique to static loading applications. We have developed a system that utilizes diffraction gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e69feb3bb656982e5d0705a96f9a153
https://doi.org/10.1007/s11340-013-9747-0
https://doi.org/10.1007/s11340-013-9747-0
Autor:
Brett A. Beiermann, Elizabeth A. Kolawa, Soyoun Jung, Michael W. Keller, David L. Banks, Nancy R. Sottos, George Studor, Frankel Lyons, Mark A Curry, Scott R. White, Max Vozoff, Kevin Champaigne, Lisong Zhou, Thomas N. Jackson, Robert W. Brocato, Erik J. Brandon
Publikováno v:
Acta Astronautica. 68:883-903
Inflatable/deployable structures are under consideration as habitats for future Lunar surface science operations. The use of non-traditional structural materials combined with the need to maintain a safe working environment for extended periods in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f51493ae26a7604425999cf2f372039
https://doi.org/10.1016/j.actaastro.2010.08.016
https://doi.org/10.1016/j.actaastro.2010.08.016
Publikováno v:
Conference Proceedings of the Society for Experimental Mechanics Series ISBN: 9781461442349
Phase-stepped photoelasticity is a powerful method for full-field stress analysis, but sequential collection of the multiple required images limits the technique to static loading applications. In an effort to collect four phase-stepped images simult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::443e58c4324681cf211ca1e5837fcd98
https://doi.org/10.1007/978-1-4614-4235-6_45
https://doi.org/10.1007/978-1-4614-4235-6_45
Autor:
Sharlotte L. B. Kramer, Jeffrey S. Moore, Douglas A. Davis, Nancy R. Sottos, Scott R. White, Brett A. Beiermann
Publikováno v:
Journal of Materials Chemistry. 21:8443
Mechanophore-linked linear poly(methyl methacrylate) (PMMA) was synthesized using bisfunctionalized spiropyran (SP) as an atom transfer radical polymerization initiator. The resulting polymer had a Tg of 127 °C and molecular weight greater than 250
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14a0e01340f7e3aef28d4c03ef4d9a3e
https://doi.org/10.1039/c0jm03967e
https://doi.org/10.1039/c0jm03967e