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Synthesis and Properties of Long Chain Polyesters From Biobased 1,5-Pentanediol and Aliphatic ?,?,-Diacids with 10-16 Carbon Atoms.
作者:Lizhong Zhou, Linbo Wu*, Pengkai Qin, Bo-Geng Li.
關鍵字:Bio-based polymers, Biodegradable polymers, Poly(1,5-pentylene dicarboxylate)s, Long chain polyesters, Thermal property, Mechanical property, Gas barrier property
論文來源:期刊
具體來源:Polymer Degradation and Stability 187 (2021) 109546
發表時間:2021年
Several aliphatic long chain polyesters with intrinsic viscosity of 0.80-1.47 dL/g were synthesized from biobased 1,5-pentanediol and long chain α, ω-diacids with 10-16 carbon atoms. Their chemical structure was characterized, and thermal, mechanical and gas barrier properties were assessed. These long chain polyesters have a melting temperature higher than poly( ε-caprolactone) and manifest polyethylene-like rapid crystallization, good thermal stability and ductile tensile behavior. Their melting temperature, crys- tallizablity, tensile modulus and oxygen and water vapor barrier performance all increase with increasing the chain length of diacid. In comparison with the widely used biodegradable poly(butylene adipate-co- terephthalate) copolyester, these potentially biodegradable polyesters show comparable tensile strength, ductility and oxygen barrier performance, but obviously superior crystallizability, tensile modulus and water vapor barrier performance.
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