Poly(Ethylene Furanoate) along Its Life-Cycle from a Polycondensation Approach to High-Performance Yarn and Its Recyclate.

ABSTRACT: We report on the pilot scale synthesis and melt spinning of poly(ethylene furanoate) (PEF), a promising bio-based fiber polymer that can heave mechanical properties in the range of commercial poly(ethylene terephthalate) (PET) fibers. Catalyst optimization and solid state polycondensation (SSP) allowed for intrinsic viscosities of PEF of up to 0.85 dL·g^-1. Melt-spun multifilament yarns reached a tensile strength of up to 65 cN·tex^-1 with an elongation of 6% and a modulus of 1370 cN·tex^-1. The crystallization behavior of PEF was investigated by differential scanning calorimetry (DSC) and XRD after each process step, i.e., after polymerization, SSP, melt spinning, drawing, and recycling. After SSP, the previously amorphous polymer showed a crystallinity of 47

SUBMITTER: Hohnemann T 

PROVIDER: S-EPMC7926444 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature