Aromatic Polymethacrylates from Lignin-Based Feedstock: Synthesis, Thermal Properties, Life-Cycle Assessment and Toxicity.

Autor: Sedrik R; Institute of Technology, University of Tartu, Nooruse 1, Tartu, 50411, Estonia., Bonjour O; Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden., de Souza NRD; Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway., Ismagilova A; Institute of Technology, University of Tartu, Nooruse 1, Tartu, 50411, Estonia., Tamsalu I; Institute of Technology, University of Tartu, Nooruse 1, Tartu, 50411, Estonia., Kisand V; Institute of Technology, University of Tartu, Nooruse 1, Tartu, 50411, Estonia., Cherubini F; Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway., Jannasch P; Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden., Vares L; Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Aug 23, pp. e202401239. Date of Electronic Publication: 2024 Aug 23.
DOI: 10.1002/cssc.202401239
Abstrakt: There is currently a great need for rigid, high-performance and processable bio-based polymers and plastics as alternatives to the fossil-based materials used today. Here, we report on the straightforward synthesis and polymerization of lignin-derived methacrylate monomers based on the methyl esters of 4-hydroxybenzoic, vanillic, and syringic acid, respectively. The corresponding homopolymethacrylates exhibit high glass transition temperatures (T g s) at 106, 128, and 197 °C, respectively. Rheological properties and thermal stability up to at least 277 °C indicate that these polymers are melt-processable. In addition, copolymers with methyl methacrylate are prepared to further vary and tune the polymer properties. An integrated ex-ante and prospective life-cycle assessment of key environmental impact parameters indicates similar or only slightly higher values compared to well-established fossil-based methyl methacrylate. Moreover, the toxicity towards human HeLa cell lines compares well with that of poly(methyl methacrylate). Hence, the potential availability of lignin-derived acids, combined with the straightforward and potentially upscalable monomer synthesis, make these rigid polymers appealing alternatives towards bio-based high-T g thermoplastic materials with low toxicity.
(© 2024 The Authors. ChemSusChem published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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