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Toughening of Bio‐Based PA 6.19 by Copolymerization with PA 6.6 : Synthesis and Production of Melt‐Spun Monofilaments and Knitted Fabrics

Title data

Rist, Maximilian ; Löcken, Henning ; Ortega, Mathias ; Greiner, Andreas:
Toughening of Bio‐Based PA 6.19 by Copolymerization with PA 6.6 : Synthesis and Production of Melt‐Spun Monofilaments and Knitted Fabrics.
In: Macromolecular Rapid Communications. Vol. 44 (2023) Issue 19 . - 2300256.
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.202300256

Official URL: Volltext

Project information

Project financing: Bundesministerium für Bildung und Forschung

Abstract in another language

This work reports on the synthesis of statistical copolymers of bio-basedPA 6.19 and PA 6.6 together with the production of melt-spun monofilamentsfor the production of sustainable textile fibers. The plant oil-based1.19-nonadecanedioic acid is synthesized from bio-derived oleic acid viaisomerizing methoxycarbonylation. The homopolymer PA 6.19 with acarbon-based bio-content of 72% shows a good elongation at break of 166%,but lower tensile strength than commercial PA 6 (43 MPa versus 82 MPa).Addition of adipic acid to form statistical PA 6.6/6.19 copolymers improvestoughness while maintaining the high elongation at break. Two PA 6.6/6.19copolymers with a carbon-based bio-content of 26% and 33% are successfullysynthesized and exhibited comparable toughness (94±6MPaand92±2 MPa) to the commercial PA 6 (92±15 MPa). The bio-based copolymersalso exhibit a much lower water uptake than PA 6 and PA 6.6, resulting in ahigher dimensional stability. Melt spinning of the oleic acid-based polyamidesis successfully carried out to produce monofilaments with sufficient propertiesfor further processing in a knitting process, demonstrating the capabilities ofthe bio-based PA 6.6/6.19 copolymers for use in the textile industry.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: copolyamide; low water uptake; oleic acid; polymer engineering; vegetableoil-based materials
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 12 Jun 2023 07:53
Last Modified: 16 Oct 2023 08:01
URI: https://eref.uni-bayreuth.de/id/eprint/81293