{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T21:49:10Z","timestamp":1769464150234,"version":"3.49.0"},"reference-count":52,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T00:00:00Z","timestamp":1768953600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Biomass liquefaction is a thermochemical process that converts lignocellulosic materials into reactive liquid intermediates, enabling the production of bio-based polyols as a sustainable alternative to petroleum-derived chemicals. This study investigates the liquefaction of two lignocellulosic biomasses, Red Angico (Anadenanthera colubrina) and Mahogany (Swietenia macrophylla), using a glycerol\u2013ethylene glycol polyalcohol system, chosen for its renewable origin and high solvating efficiency. The resulting polyols were used to produce polyurethane (PU) foams, and their properties were evaluated in relation to biomass composition. The chemical composition of each biomass significantly influenced its liquefaction behavior and polyol characteristics. Mahogany achieved higher liquefaction efficiency, whereas Red Angico polyols generated PU foams with superior mechanical performance, highlighting the influence of species-specific chemistry. Water content and isocyanate index were found to modulate foam structure and compressive strength. This work demonstrates how tailored liquefaction strategies using polyalcohol systems can optimize bio-based PU foam properties, providing a sustainable route for high-performance polymer materials.<\/jats:p>","DOI":"10.3390\/ma19020417","type":"journal-article","created":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T11:11:17Z","timestamp":1768993877000},"page":"417","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of Wood Chemical Composition on Liquefaction Efficiency and Polyurethane Foam Properties: A Study of Red Angico and Mahogany"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2739-9413","authenticated-orcid":false,"given":"Emilly","family":"Silva","sequence":"first","affiliation":[{"name":"Department of Forest and Wood Sciences, Federal University of Esp\u00edrito Santo, Jer\u00f4nimo Monteiro 29550-000, ES, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6502-7202","authenticated-orcid":false,"given":"Lu\u00edsa","family":"Cruz-Lopes","sequence":"additional","affiliation":[{"name":"CERNAS (Centre for Natural Resources, Environment and Society), Research Centre, Polytechnic University of Viseu, Av. Cor. Jos\u00e9 Maria Vale de Andrade, 3504-510 Viseu, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4308-1563","authenticated-orcid":false,"given":"Idalina","family":"Domingos","sequence":"additional","affiliation":[{"name":"CERNAS (Centre for Natural Resources, Environment and Society), Research Centre, Polytechnic University of Viseu, Av. Cor. Jos\u00e9 Maria Vale de Andrade, 3504-510 Viseu, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2010-9508","authenticated-orcid":false,"given":"Fabricio","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Department of Forest and Wood Sciences, Federal University of Esp\u00edrito Santo, Jer\u00f4nimo Monteiro 29550-000, ES, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6470-0773","authenticated-orcid":false,"given":"Bruna da Silva","family":"Cruz","sequence":"additional","affiliation":[{"name":"Department of Forest and Wood Sciences, Federal University of Esp\u00edrito Santo, Jer\u00f4nimo Monteiro 29550-000, ES, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4495-6058","authenticated-orcid":false,"given":"Michel\u00e2ngelo","family":"Fassarella","sequence":"additional","affiliation":[{"name":"Department of Forest and Wood Sciences, Federal University of Esp\u00edrito Santo, Jer\u00f4nimo Monteiro 29550-000, ES, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4849-1641","authenticated-orcid":false,"given":"Ant\u00f4nio Thiago de","family":"Almeida","sequence":"additional","affiliation":[{"name":"Department of Forest and Wood Sciences, Federal University of Esp\u00edrito Santo, Jer\u00f4nimo Monteiro 29550-000, ES, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6660-3128","authenticated-orcid":false,"given":"Bruno","family":"Esteves","sequence":"additional","affiliation":[{"name":"CERNAS (Centre for Natural Resources, Environment and Society), Research Centre, Polytechnic University of Viseu, Av. Cor. Jos\u00e9 Maria Vale de Andrade, 3504-510 Viseu, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Whistler, R.L. (1993). Hemicelluloses. Industrial Gums, Academic Press.","DOI":"10.1016\/B978-0-08-092654-4.50015-2"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Bajpai, P. (2022). Physical and Chemical Characteristics of Lignocellulosic Biomass. Lignocellulosic Biomass in Biotechnology, Elsevier.","DOI":"10.1016\/B978-0-12-821889-1.00001-1"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Bajpai, P. (2022). Xylan Occurrence and Structure. 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