Atom-Economic Molecular Design of Vanillin-Based Tetraene for Tunable Polyester via Thiol-ene Click Polymerization
Abstract
Vanillin-based tetraene monomer (TVE) was synthesized from renewable vanillin via sequential Williamson etherification, followed by atom-economic Claisen rearrangement and Tishchenko condensation. UV-thermal thiol-ene polymerization of TVE yielded bio-based, cross-linked polyester with tunable thermomechanical properties, high transparency, and UV-blocking capability.
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