09/24/19 - 9:45 AM to 11:00 AM
POLY/PMSE Seminar: Professor Craig Hawker
POLY/PMSE Student Chapter
Synthesis and Application of Multi-Functional Polymeric Materials
The design of multi-functional building blocks for common polymeric materials and their extension to commercial products will be demonstrated. In synthesizing these nanostructures, functional group interconversion and efficient organic transformations are key to obtaining materials with exceptional properties. As one illustration, a novel methodology for printing 3D objects with spatially resolved mechanical and chemical properties will be described. The power of this approach is showcased through the one-step fabrication of bioinspired soft joints and mechanically reinforced “brick-and-mortar” structures using tailored photochromic dyes.
Professor Craig J. Hawker is Clarke Professor and holds the Alan and Ruth Heeger Chair of Interdisciplinary Science at University of California, Santa Barbara (UCSB) where he directs the California Nanosystems Institute and the Dow Materials Institute. He came to UCSB in 2004 after 11 years as a research staff member at the IBM Almaden Research Center in San Jose, CA. Professor Hawker’s work has led to more than 500 peer-reviewed papers and 75 patents. Professor Hawker has helped to establish a range of start-up companies including Relypsa, Intermolecular, Olaplex, Tricida. For his pioneering studies, Professor Hawker’s recent honors include the 2017 Charles Overberger International Prize, the 2013 American Chemical Society Award in Polymer Chemistry, and the 2012 Centenary Prize from the Royal Society of Chemistry. Professor Hawker has been honored with election to the Royal Society as well as being named a Fellow of the National Academy of Inventors, American Association for the Advancement of Science and in 2018 the American Academy of Arts and Sciences.
Professor Hawker's group has developed a versatile strategy that allows access to discrete oligomers from commercially available monomer families (e.g. styrenes, acrylates, methacrylates etc.) on multigram scale. By combining high yielding, controlled polymerization procedures with automated chromatography techniques, functional oligomers can be rapidly and reproducibly accessed with NMR, MALDI, and SEC characterization demonstrating structural purity. A primary focus of the group is to compare discrete polymers with their disperse analogues to better understand and improve existing phenomena including optical properties of conjugated oligomers, crystallization behaviour of stereochemically enriched oligomers and block co-oligomer bulk and solution self-assembly.