Modulating Crystallization Behavior to Improve Melt Processability and Mechanical Performance in PCT Copolyesters via Benzenedimethanol Incorporation
Poly(1,4-cyclohexanedimethylene terephthalate) (PCT) suffers from a narrow melt-processing window and low elongation at break, limiting manufacturability and toughness. Rigid 1,4-benzenedimethanol (BDM) was incorporated via melt polycondensation, followed by solid-state polymerization to increase molar mass, and poly...