EVENT DETAILS
Weekly seminars with guest speakers.
Thursdays 9:00AM - 10:00AM Tech M345
Thomas RussellUMass AmherstHost: Mitchell Wang
Structuring Liquids
The ability to manipulate and lock-in the shape of one liquid in a second, i.e structuring the liquids, allows the generation of unique materials that have the dynamics and mobility of liquids but the structural integrity of a solid. Bicontinuous fluids for separations, novel encapsulants for delivery systems, or all-liquid charge transport systems ae possible. Yet, these fluids have shapes that are far removed from their equilibrium shape and developing routes to kinetically lock-in these non-equilibrium shapes while retaining the local fluidity is key. We describe the in situ generation of nanoparticle surfactants in oil/water systems that assemble at the liquid/liquid interface. When the liquids are brought into non-equilibrium shapes, the nanoparticle surfactants will jam at the interface, freezing in the shapes of the liquids. External stimuli, as for example pH, electric or magnetic fields, or temperature can then be used to re-shape the liquids, so that the structured liquids are adaptive. For water/water systems, the formation of a coacervate membrane that lead to aqueous compartmentalized systems separated by membranes with directed charge transport. This enables the design of coordinated and cascading reaction schemes similar to those seen in biological systems.
Thomas P. Russell, the Silvio O. Conte Distinguished Professor of Polymer Science and Engineering at the University of Massachusetts in Amherst, received his PhD in 1979 in Polymer Science and Engineering from the University of Massachusetts Amherst, a Research Associate at the University of Mainz (1979-1981), a Research Staff Member at the IBM Almaden Research Center in San Jose, CA (1981-96). He is also a Visiting Faculty at the Materials Science Division in the Lawrence Berkeley National Laboratory, an Adjunct Professor at the Beijing University of Chemical Technology, and a PI at the Advanced Institute of Materials Research at Tohoku University. His research interests include the surface and interfacial properties of polymers, phase transitions in polymers, directed self-assembly processes, the use of polymers as scaffolds and templates for the generation of nanoscopic structures, the interfacial assembly of nanoparticles and wrinkling of thin polymer films. He was the Director of the Materials Research Science and Engineering Center from (1996-2009), Director of the Energy Frontier Research Center on Polymer-Based Materials for Harvesting Solar Energy (2009-2014), a PI in the Global Research Laboratory at Seoul National University (2005-2015), and the Beijing Advanced Innovation Center on Soft Matter (2016-present). He has over 850 publications, 35 patents and edited 5 books. He is a Fellow of the American Physical Society, Materials Research Society, Neutron Scattering Society of America, American Association for the Advancement of Science, and the American Chemical Society, Polymer Materials Science and Engineering Division. He has received the Polymer Physic Prize of the APS, the Cooperative Research Award of the ACS, the Dutch Polymer Award, the ACS Award in Applied Polymer Science, Society of Polymer Science Japan International Award, and is an elected member of the National Academy of Engineering and the National Academy of Inventors.
TIME Thursday October 3, 2019 at 9:00 AM - 10:00 AM
LOCATION M345, Technological Institute map it
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CONTACT Elizabeth Rentfro elizabeth.rentfro@northwestern.edu
CALENDAR McCormick-Chemical and Biological Engineering