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Biaxial Orientation of Poly(ethylene 2,5‐furandicarboxylate): An Explorative Study
Author(s) -
van Berkel Jesper G.,
Guigo Nathanaël,
Kolstad Jeffrey J.,
Sbirrazzuoli Nicolas
Publication year - 2018
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201700507
Subject(s) - materials science , crystallinity , polyester , poly ethylene , composite material , ethylene , crystallization , terephthalic acid , modulus , strain hardening exponent , shrinkage , polymer chemistry , chemical engineering , organic chemistry , chemistry , engineering , catalysis
The biaxial orientation behavior of poly(ethylene 2,5‐furandicarboxylate) (PEF) is studied in comparison to poly(ethylene terephthalate) (PET). PEF is a polyester that can be produced through similar steps as PET but using 100% biobased 2,5‐furandicarboxylic acid instead of terephthalic acid. This work highlights the stress–strain behavior of PEF during biaxial orientation at various temperatures. Strain hardening and strain‐induced crystallization in the oriented PEF samples generally appeared at higher stretch ratios for PEF than for PET at comparable molecular weight, while somewhat lower degrees of crystallinity are reached in PEF. Shrinkage in oriented PEF is found to be on par with PET in the region of the glass transition. Higher modulus and improved barrier properties, compared to PET, are found in the oriented materials when sufficiently high stretch ratios are applied in biaxial orientation.