Abstract
Independence of food supply chain is a grand challenge encountered by the development of bio-based polymers. Here, we demonstrate the synthesis of amorphous aliphatic polyesters via organocatalyzed ring-opening polymerization of 9-membered lactone monomer, a novel downstream product of non-edible citronella oil. In particular, chemical transformation of trisubstituted alkene moiety owned by this renewable biomass was achieved by cross-metathesis of this bulky group with methyl acrylate. Three-armed star polymers were converted to free-standing films by UV-induced crosslinking. In particular, these crosslinked thin films could be efficiently recycled as ω-hydroxy ester upon methanolysis. This work opens a new avenue for the synthesis and application of terpene- and terpenoid-based polymers.
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