Synthesis and characterization of bio‐based polyesters derived from 1,10‐decanediol

Abstract Two kinds of bio‐based polyesters were synthesized from 1,10‐decanediol (DD), dimethyl terephthalate (DMT) or 2,6‐naphthalene dicarboxylic acid (NDCA). Chemical structure, thermal properties and crystal structures, tensile properties and rheological properties were investigated. The glass transition temperature and melting temperature of poly(decamethylene 2,6‐naphthalate) (PDN) are higher than that of poly(decamethylene terephthalate) (PDT). Differential scanning calorimetry and wide‐angle X‐ray diffraction results suggested that PDT and PDN were semi‐crystalline polymers. Equilibrium melting points of PDT and PDN were 129.5°C and 167.1°C, respectively. Compared with PDT, PDN exhibited the higher tensile strength (36.8 MPa) and lower elongation at break (224%) and the complex viscosity of PDN is more sensitive to temperature and oscillation frequency. Compared with the current available bio‐based plastic poly(butylene succinate) (PBS), PDT and PDN exhibit higher melting temperature, faster crystallization rate and comparable tensile properties.