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Polymers 2017, 9(9), 305; https://doi.org/10.3390/polym9090305

Copolyesters Based on 2,5-Furandicarboxylic Acid (FDCA): Effect of 2,2,4,4-Tetramethyl-1,3-Cyclobutanediol Units on Their Properties

1
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Received: 24 June 2017 / Revised: 20 July 2017 / Accepted: 21 July 2017 / Published: 24 August 2017
(This article belongs to the Special Issue Biodegradable and Biobased Polyesters)
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Abstract

Bio-based polyesters derived from 2,5-furandicarboxylic acid (FDCA), including poly (ethylene 2,5-furandicarboxylate) (PEF), poly(propylene 2,5-furandicarboxylate) (PPF), and poly(butylene 2,5-furandicarboxylate) (PBF) have been synthesized and modified with 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO). Copolyesters with increased glass transition temperature, good barrier and better mechanical properties, as well as higher transparency were reported in this work. The chemical structures, composition, and sequence distribution of the copolyesters were determined by 1H NMR and 13C NMR. The degree of random (R) was close to 1 for all the copolyesters, indicating their random chemical structures. With the introduction of 10% CBDO units, the semi-crystalline PEF and PPF were changed into completely amorphous polyesters and the higher transparency was easily achieved. The glass transition temperature was increased from 87 °C for PEF to 91.1 °C for PETF-18, from 55.5 °C for PPF to 63.5 °C for PPTF-18, and from 39.0 °C for PBF to 43.5 °C for PBTF-18. The barrier properties investigation demonstrated that although the O2 and CO2 barrier of PEF/PPF/PBF were decreased by the addition of CBDO units, the modified copolyesters still showed good barrier properties. View Full-Text
Keywords: 2,5-Furandicarboxylic acid (FDCA); poly (ethylene 2,5-furandicarboxylate) (PEF); poly(propylene 2,5-furandicarboxylate) (PPF); poly(butylene 2,5-furandicarboxylate) (PBF); 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) 2,5-Furandicarboxylic acid (FDCA); poly (ethylene 2,5-furandicarboxylate) (PEF); poly(propylene 2,5-furandicarboxylate) (PPF); poly(butylene 2,5-furandicarboxylate) (PBF); 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, J.; Liu, X.; Zhu, J.; Jiang, Y. Copolyesters Based on 2,5-Furandicarboxylic Acid (FDCA): Effect of 2,2,4,4-Tetramethyl-1,3-Cyclobutanediol Units on Their Properties. Polymers 2017, 9, 305.

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