A
primary interest in the Wooley laboratory is the production of functional
polymers from renewable sources that are capable of reverting to those
natural products once their purpose has been served. A long-standing focus has been the
development of synthetic methodologies that transform sugars, nucleic acids,
amino acids and other natural products into polymer materials. That interest began with motivation toward
biomedical materials that could replace metals or degradable aliphatic
polyesters in orthopedic repair applications, which turned to the Plant
Kingdom’s major structural material, cellulose as a model and inspiration for
innovative polymer materials design.
With the intention of constructing polymers that would possess similar
mechanical properties to bone while undergoing hydrolytic degradation without
requiring cellulase enzymes and with appropriate degradation kinetics that
led to bioabsorbable degradation products, the initial concept involved
replacing glycosidic linkages by installation of carbonates between the
glucose repeat units. The initial
synthetic target, therefore, was a poly(glucose carbonate). Since then, this concept has been expanded
significantly, and many synthetic approaches have been developed that have
afforded a breadth of sustainable, degradable polymers derived from natural
products as building blocks. The inherent diversities of natural products
provide opportunities to expand the scopes, complexities and properties of
polymers, by utilizing fundamental organic chemistry approaches. This presentation will provide historical
perspectives of Wooley’s journey toward sustainable polymer chemistry and its
ultimate translation to carbohydrate-derived plastics commercially. It will also reflect upon the future of
polymer materials, with particular emphasis on sourcing of feedstocks and
in-built degradability and digestibility to address sustainability, and with
interests in the design of next-generation plastics that meet important
societal needs while allowing for dynamic reconfigurability and avoiding
health, welfare, and environmental adversities.