期刊
EUROPEAN POLYMER JOURNAL
卷 109, 期 -, 页码 191-197出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2018.09.051
关键词
Poly(ethylene 2,5-furandicarboxylate); 2,5-furandicarboxylic acid; epsilon-caprolactone; Mechanical properties; Copolyester
资金
- National Key R&D Program of China [2016YFB0301900]
- Science and Technology Support Program of Sichuan Province [2015GZ0065]
A new bio-based copolyesters, poly(ethylene 2,5-furandicarboxylate-co-epsilon-caprolactone) (PEFCL), were synthesized from 2,5-furandicarboxylic acid, ethylene glycol and epsilon-caprolactone. The obtained copolyesters were characterized in terms of chemical structures, thermal and mechanical properties. The characterization results of H-1 NMR and C-13 NMR had confirmed the insertion of lactones units in PEF chains, all PEFCL copolyesters showed random microstructures. These bio-based copolymers were amorphous and had one glass transition temperature decreased as increasing the CL content. The thermal stability of PEFCL is slightly lower than PEF. Tensile testing revealed that introduction of epsilon-caprolactone into PEF chains impart PEFCL with excellent mechanical performance, typically, PEFCL40 had a Young's modulus 1182 +/- 80 MPa, a tensile strength 51 +/- 3 MPa and an elongation as high as 981 +/- 117%.
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