High Molecular Weight Unsaturated Copolyesters Derived from Fully Biobased trans-β-Hydromuconic Acid and Fumaric Acid with 1,4-Butanediol: Synthesis and Thermomechanical Properties

This work describes the synthesis, structure, and physical and thermomechanical properties of fully biobased unsaturated copolyesters via melt-polycondensation of renewable monomers trans-β-hydromuconic acid and fumaric acid with 1,4-butanediol conducted by a two-step polymerization employing stannous octoate as a catalyst and 4-methoxyphenol as a radical inhibitor. The polymerization conditions, including catalyst amount, second-stage reaction...