Events
Toward the Precise Synthesis of Nitrogen-rich Polymers as Next-generation Soft Materials: From Antibacterial Agents to Recyclable Plastics by Prof. Q. Michaudel, Texas A&M University
Description:
Webinar
Toward the Precise Synthesis of Nitrogen-rich Polymers as Next-generation Soft Materials: From Antibacterial Agents to Recyclable Plastics
Prof. Quentin Michaudel
Department of Chemistry & Department of Materials Science & Engineering
Texas A&M University
Thursday, February 22, Webinar at 6:00 PM Pacific time
Abstract
This presentation will cover our efforts toward the precise synthesis of nitrogen-containing soft materials through the development of polymerization processes hinging upon modern organic reactions. In the first part of the webinar, we will first discuss an expedient synthesis of pyridine- and pyridinium-fused norbornenes and their polymerization via ring-opening metathesis polymerization (ROMP). This living polymerization allowed the synthesis of polymers with predictable molar masses, narrow dispersities, and functionalizable chain ends for the preparation of block copolymers. The focus will then shift to the discussion of the antibacterial properties of poly(pyridinium-fused norbornene)s against both Gram-negative Escherichia coli and Gram-positive methicillin resistant Staphylococcus aureus (MRSA). The selectivity of these unique main-chain cationic polymers for bacterial cells over mammalian cells was also assessed through hemolysis assays. The second part of the webinar will cover our work on the design of polysulfamides as a sustainable alternative to polyureas with improved degradation profile. Polysulfamides form a family of polymers with largely unknown physical properties that can be seen as –SO2– analogs of polyureas, which are commonly used in the coating, clothing, and adhesive industries. The invention of polymerizations processes capitalizing on Sulfur(VI) Fluoride Exchange (SuFEx) click chemistry will be presented. The influence of hydrogen bonding and polymer composition over thermal properties and crystallinity will be demonstrated through a variety of experimental data and our attempts to predict polymer assembly via computational methods will be covered. Finally, the design of complementary processes for the recycling or upcycling of the synthesized polysulfamides will be highlighted.
Speaker Background
Quentin Michaudel grew up in La Rochelle, France. He received his B.Sc. (2008) and M.Sc. (2010) from the École Normale Supérieure de Lyon. He earned his Ph.D. (2015) with Professor Phil S. Baran at The Scripps Research Institute, where he explored C–H functionalization methods and their applications to the synthesis of complex molecules. Quentin then accepted a postdoctoral position at Cornell University, where he developed photocontrolled polymerizations with Professor Brett P. Fors. In 2018, Quentin started his independent career as an assistant professor at Texas A&M University. His research group focuses on the development of synthetic methods and new organic materials for a variety of applications ranging from clean energy production to healthcare and recyclable plastics. Quentin is the recipient of an NIH MIRA award (2020) and an NSF Career Award (2022). He was selected for the 2022 ACS PMSE Young Investigator Award and the 2022 ACS Organic Division Academic Young Investigator’s Symposium.
DATE: Thursday, February 22
Registration deadline: Wednesday, February 21, 1:00 PM.
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Webinar Timing: 6:00 PM.
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