03/26/18 - 4:00 PM to 5:00 PM
Special Seminar: Professor Emily B. Pentzer
"Using the Assembly of 2D Particles at Fluid-Fluid Interfaces to Architect Composite Materials"
The interface between two fluids is not only important for defining reactivity of dislike materials, but is also applicable for the preparation of stable higher order structures. Recently, the Pentzer lab developed 2D carbon-based nanosheets that assemble at different fluid-fluid interfaces including oil-water, oil-oil, and ionic liquid-water and demonstrated the use of these Pickering emulsions as templates for the preparation of higher order hybrid structures. Graphene oxide (GO) and its functionalized analogues are used as the 2D particle surfactant, and are especially attractive given they have properties distinct and complimentary to the more commonly studied spherical and rod-like counterparts, and because these nanosheets are multifunctional (e.g., antimicrobial, good gas barriers, precursor to electrically conductive nanosheets, etc.). Recent advances from the Pentzer lab will be reported, including preparation of Janus nanosheets, water-sensitive reactions in oil-in-oil emulsions, GO capsules filled with ionic liquid for supercapacitor electrodes, GO capsules for compartmentalization of phase change materials, and GO coatings for 3D printable polymers to prepare conductive structures. This work makes use of fundamental organic chemistry reactions and thus gives access to unique structures and assemblies of interest for a broad range of applications in a scalable fashion.
Professor Pentzer received a Bachelor of Science degree in chemistry from Butler University (2005), and a doctorate in organic chemistry from Northwestern University (2010). Her thesis work focused on metathesis routes for preparing and polymerizing unsaturated medium-sized lactones and lactams ,under the direction of Professor Sonbinh T. Nguyen. She then worked with Professor Todd Emrick in the Polymer Science and Engineering Department at the University of Massachusetts Amherst. She focused on the synthesis and assembly of electronically active materials for organic photovoltaics as part of a Department of Energy Energy Frontier Research Center on Polymer-Based Materials for Harvesting Solar Energy.
In 2013, Pentzer joined the Department of Chemistry faculty at Case Western Reserve University (CWRU), and received a secondary appointment in Macromolecular Science and Engineering in 2015. Her research uses organic synthesis to access new materials and assemblies as a route to understand structure-property relationships and access electronic properties not possible with current state-of-the-art systems.
Professor Pentzer has received several awards including the National Science Foundation CAREER award (2016) and Polymeric Materials: Science and Engineering Division Young Investigator Award (2017). She currently serves as an associate editor for the Royal Society of Chemistry journal Polymer Chemistry as well as the publicity chair for the Polymer Division of the American Chemical Society. She is a faculty mentor through for the Beckman Scholars Program at CWRU and was recently named a “must see” presenter at the national meeting of the American Chemical Society in New Orleans.
Event DetailsLocation: 331 Smith HallHost: Professor Theresa Reineke