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M. Kwiatkowska, I. Kowalczyk, A. Szymczyk, K. Gorący

Effect of thermal aging on the crystalline structure and mechanical performance
of fully bio-based, furan-ester, multiblock copolymers (in English)

Polimery 2018, No 9, 594


DOI: dx.doi.org/10.14314/polimery.2018.9.3

Summary

In this study, the effect of thermal aging on the physical transitions, crystalline structure development and the mechanical performance of furan-ester, multiblock copolymers is reported. The materials were synthesized via polycondensation in a melt using 2,5-furandicarboxylic acid (FDCA), 1,3-propanediol (1,3-PD) and dimerized fatty acid diol (FADD). All reagents were plant-derived. The copolymers were characterized by a multiblock structure with randomly distributed poly(trimethylene 2,5-furandicarboxylate) (PTF) and FADD segments and a phase separation forced by the crystallization of the rigid segment. As a consequence, the copolymers revealed elastomeric behavior and a rubbery plateau over a relatively large temperature range and also good processability. However, due to the specific architecture of FDCA – the most important bio-based monomer – the crystallization of the rigid segment was impeded. Differential scanning calorimetry (DSC), wide-angle (WAXS) and small-angle X-ray scattering (SAXS) analyses confirmed a significant development in the crystalline structure due to the thermal treatment. As a consequence, noticeable changes in the mechanical performance of the copolymer samples were observed, which is interesting for potential applications of these new materials.

Keywords: 2,5-furandicarboxylic acid, furan-ester copolymers, bio-based polymers, thermal aging
e-mail: magdalena.kwiatkowska@zut.edu.pl
M. Kwiatkowska, I. Kowalczyk, A. Szymczyk, K. Gorący (517 KB)
Effect of thermal aging on the crystalline structure and mechanical performance of fully bio-based, furan-ester, multiblock copolymers (in English)