Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Preston A. May"'
Publikováno v:
ACS macro letters. 5(2)
A detailed understanding of the fundamental processes that govern mechanical transduction in covalent polymer mechanochemistry is essential to advance innovation in this field. In contrast to progress in the development of new mechanophores, the infl
Autor:
Preston A. May, Nancy R. Sottos, Scott R. White, Cassandra M Birrenkott, Jeffrey S. Moore, Martha E. Grady
Publikováno v:
Langmuir. 36:5847-5854
Functionalization of planar and curved glass surfaces with spiropyran (SP) molecules and localized UV-induced activation of the mechanophore are demonstrated. Fluorescence spectra of UV-irradiated SP-functionalized surfaces reveal that increases in s
Publikováno v:
Day 3 Thu, March 10, 2022.
Fluid invasion into permeable formations can lead to a host of undesirable effects during well construction. These effects which include formation instability, formation damage, and differential sticking, can result in reduced wellbore productivity o
Publikováno v:
Day 2 Tue, January 14, 2020.
The water reactivity of clay-containing shale minerals remains a long-standing problem when drilling wellbores with water-based fluid systems. Complicating this issue, the environmental effect of chemical additives used in water-based drilling fluids
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
Autor:
Corissa K. Lee, Preston A. May, Enjiong Lu, Paul V. Braun, Jeffrey S. Moore, Austin N. Pickett, Charles E. Diesendruck
Publikováno v:
Macromolecules. 47:2690-2694
A spiropyran mechanophore (force-sensitive molecule), which is fluorescent in its mechanically activated state, is used to investigate swelling-induced mechanochemistry in cross-linked poly(methyl methacrylate). The spiropyran is incorporated as a cr
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
Autor:
Jeffrey S. Moore, Preston A. May
Publikováno v:
ChemInform. 44
Autor:
Scott R. White, Andrew J. Boydston, Joshua A. Kaitz, Brendan D. Mar, Todd J. Martínez, Heather J. Kulik, Charles E. Diesendruck, Gregory I. Peterson, Jeffrey S. Moore, Preston A. May
Publikováno v:
Nature chemistry. 6(7)
Biological systems rely on recyclable materials resources such as amino acids, carbohydrates and nucleic acids. When biomaterials are damaged as a result of aging or stress, tissues undergo repair by a depolymerization-repolymerization sequence of re
Autor:
Jeffrey S. Moore, Preston A. May
Publikováno v:
Chemical Society reviews. 42(18)
Long chain polymers have a unique ability to become highly extended in elongational flow fields. The forces developed along the backbone give rise to scission of the chains near their center. Recently, this unique property of polymers has been adopte