Influence of chain length in protic ionic liquids on physicochemical and structural features of lignins from sugarcane bagasse

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversity of Tennessee-
Autor(es): dc.contributorR. Giuseppe Maximo Scolfaro-
Autor(es): dc.contributorBethel Valley Rd. Oak Ridge-
Autor(es): dc.contributorInstitute of Agriculture-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorPin, Thaynara C.-
Autor(es): dc.creatorBrenelli, Lívia B.-
Autor(es): dc.creatorNascimento, Viviane M.-
Autor(es): dc.creatorCosta, Aline C.-
Autor(es): dc.creatorPu, Yunqiao-
Autor(es): dc.creatorRagauskas, Arthur J.-
Autor(es): dc.creatorRabelo, Sarita C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:44:24Z-
Data de disponibilização: dc.date.available2022-02-22T00:44:24Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.indcrop.2020.113080-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205473-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205473-
Descrição: dc.descriptionThe mechanisms behind lignin dissolution with protic ionic liquids (PILs) and their influence over lignin properties remain not fully explored. In this work, physicochemical and structural features of lignins extracted from sugarcane bagasse after pretreatment with a series of PILs (length of the cation chain combined with different anions) were assessed using analytical techniques. It was found that the lignin extracted with shorter chain length cations PILs showed the highest β-O-4 content. Opposite, the increase of the PILs cation chain length resulted in enhanced depolymerization. All lignins presented high polydispersity (>3.7), while the weight average molecular ranged from 1921 to 13,539 g/mol. The recovered [Eti][Mal] lignin presented the higher β-O-4 content and was possibly the most preserved lignin obtained. Opposite, lignin isolated from [Hex][Ac] and [Hex][For] treatments had less β-O-4 linkages attributed to the depolymerization of lignin via rupture of ether linkages generating intermediates that further repolymerized and/or depolymerized. These results suggest that the ionicity of the PIL is a crucial factor for lignin dissolution. Furthermore, these results illustrate that the proposed pretreatment using different PILs is useful to obtain high-quality lignins with distinct features and opens a new perspective for materials to match various applications.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionSchool of Chemical Engineering University of Campinas (UNICAMP), Av. Albert Einstein-
Descrição: dc.descriptionDepartment of Chemical and Biomolecular Engineering University of Tennessee, Middle Dr-
Descrição: dc.descriptionInterdisciplinary Center of Energy Planning (NIPE) University of Campinas (UNICAMP) R. Cora Coralina-
Descrição: dc.descriptionBrazilian Biorenewables National Laboratory (LNBR) Brazilian Center for Research in Energy and Materials (CNPEM) R. Giuseppe Maximo Scolfaro-
Descrição: dc.descriptionBiosciences Division Joint Institute for Biological Sciences Oak Ridge National Laboratory (ORNL) Bethel Valley Rd. Oak Ridge-
Descrição: dc.descriptionCenter for Renewable Carbon Department of Forestry Wildlife and Fisheries University of Tennessee Institute of Agriculture, Morgan Cir Dr-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Av. Universitária-
Descrição: dc.descriptionDepartment of Bioprocess and Biotechnology College of Agricultural Sciences São Paulo State University (UNESP), Av. Universitária-
Descrição: dc.descriptionCNPq: 141393/2018-1-
Descrição: dc.descriptionFAPESP: 2015/20630-4-
Descrição: dc.descriptionFAPESP: 2017/15477-8-
Descrição: dc.descriptionCNPq: 204710/2018-9-
Descrição: dc.descriptionCAPES: 23038.007211/2012-93-
Descrição: dc.descriptionCNPq: 304944/2018-1-
Descrição: dc.descriptionCNPq: 405934/2018-1-
Idioma: dc.languageen-
Relação: dc.relationIndustrial Crops and Products-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiorefinery-
Palavras-chave: dc.subjectLignin-
Palavras-chave: dc.subjectPhysicochemical characterization-
Título: dc.titleInfluence of chain length in protic ionic liquids on physicochemical and structural features of lignins from sugarcane bagasse-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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