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Synthesis and melt-spinning of partly bio-based thermoplastic poly(cycloacetal-urethane)s toward sustainable textiles
Lund University, Sweden.
RISE Research Institutes of Sweden, Materials and Production, Chemistry, Biomaterials and Textiles. Plasman, Sweden.ORCID iD: 0000-0002-1950-8762
RISE Research Institutes of Sweden, Materials and Production, Chemistry, Biomaterials and Textiles.ORCID iD: 0000-0002-9821-9769
Lund University, Sweden.
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2021 (English)In: Polymer Chemistry, ISSN 1759-9954, E-ISSN 1759-9962, Vol. 12, no 34, p. 4942-4953Article in journal (Refereed) Published
Abstract [en]

A rigid diol with a cyclic acetal structure was synthesized by facile acetalation of fructose-based 5-hydroxymethyl furfural (HMF) and partly bio-based di-trimethylolpropane (di-TMP). This diol (Monomer T) was copolymerized with potentially bio-based flexible polytetrahydrofuran and diisocyanates to prepare thermoplastic poly(cycloacetal-urethane)s. A modified one-step solution polymerization protocol resulted in relatively high molecular weights (Mn ∼ 41.5-98.9 kDa). All the obtained poly(cycloacetal-urethane)s were amorphous with tuneable glass transition temperatures up to 104 °C. Thermogravimetric analysis indicated that these polymers were thermally stable up to 253 °C and had a relatively high pyrolysis char residue, which may indicate potential inherent flame resistance. Melt rheology measurements were performed to determine a suitable processing window between 165-186 °C, after which the polymer was successfully melt-spun into ∼150 meters of homogeneous fibres at 185 °C. The resulting fibres could be readily hydrolysed under acidic conditions, resulting in partial recovery of the original chemical building blocks.

Place, publisher, year, edition, pages
Royal Society of Chemistry , 2021. Vol. 12, no 34, p. 4942-4953
Keywords [en]
Esters, Flame resistance, Glass transition, Melt spinning, Reinforced plastics, Textiles, Thermogravimetric analysis, Acidic conditions, Chemical building blocks, High molecular weight, Polytetrahydrofuran, Processing windows, Solution polymerization, Sustainable textiles, Trimethylolpropane, Spinning (fibers)
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-56680DOI: 10.1039/d1py00450fScopus ID: 2-s2.0-85114348253OAI: oai:DiVA.org:ri-56680DiVA, id: diva2:1600142
Note

Funding details: 2016/1489; Funding details: Crafoordska Stiftelsen, 20160774, 20180939; Funding details: Kungliga Fysiografiska Sällskapet i Lund; Funding text 1: This work was financially supported by the Mistra Foundation (the “STEPS” project, No. 2016/1489), the Crafoord Foundation (No. 20160774 and 20180939), and the Royal Physiographic Society in Lund. Nilson Group AB is acknowledged for financial support. We thank Åsa Halldén Björklund and Linda Zellner from Perstorp AB and John P. Jensen from Nordzucker Technology for valuable discussions, Bartosz Schmidt for the SEC analysis, Sofia Essén for the mass spectrometry measurements.

Available from: 2021-10-04 Created: 2021-10-04 Last updated: 2023-06-08Bibliographically approved

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Nilsson, ErikGuo, Zengwei

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