Regioselective Protection and Deprotection of Nanocellulose Molecular Design Architecture: Robust Platform for Multifunctional Applications

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Autor(es): dc.contributorUniversity of Toronto-
Autor(es): dc.contributorCarleton University-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorTOTAL American Services Inc.-
Autor(es): dc.creatorDias, Otavio Augusto Titton-
Autor(es): dc.creatorKonar, Samir-
Autor(es): dc.creatorPakharenko, Viktoriya-
Autor(es): dc.creatorGraziano, Antimo-
Autor(es): dc.creatorLeão, Alcides Lopes-
Autor(es): dc.creatorTjong, Jimi-
Autor(es): dc.creatorJaffer, Shaffiq-
Autor(es): dc.creatorSain, Mohini-
Data de aceite: dc.date.accessioned2025-08-21T15:41:47Z-
Data de disponibilização: dc.date.available2025-08-21T15:41:47Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acs.biomac.1c00909-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233837-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233837-
Descrição: dc.descriptionRegioselectively substituted nanocellulose was synthesized by protecting the primary hydroxyl group. Herein, we took advantage of the different reactivities of primary and secondary hydroxyl groups to graft large capping structures. This study mainly focuses on regioselective installation of trityl protecting groups on nanocellulose chains. The elemental analysis and nuclear magnetic resonance spectroscopy of regioselectively substituted nanofibrillated cellulose (NFC) suggested that the trityl group was successfully grafted in the primary hydroxyl group with a degree of substitution of nearly 1. Hansen solubility parameters were employed, and the binary system composed of an ionic liquid and pyridine as a base was revealed to be the optimum condition for regioselective functionalization of nanocellulose. Interestingly, the dissolution of NFC in the ionic liquid and the subsequent deprotection process of NFC substrates hardly affected the crystalline structure of NFC (3.6% decrease in crystallinity). This method may provide endless possibilities for the design of advanced engineered nanomaterials with multiple functionalities. We envisage that this protection/deprotection approach may lead to a bright future for the fabrication of multifunctional devices based on nanocellulose.-
Descrição: dc.descriptionCentre for Biocomposites and Biomaterials Processing John H. Daniels Faculty of Architecture Landscape and Design University of Toronto-
Descrição: dc.descriptionDepartment of Mechanical and Industrial Engineering University of Toronto-
Descrição: dc.descriptionDepartment of Mechanical and Aerospace Engineering Carleton University-
Descrição: dc.descriptionCollege of Agricultural Sciences São Paulo State University (Unesp), Botucatu-
Descrição: dc.descriptionTOTAL American Services Inc.-
Descrição: dc.descriptionCollege of Agricultural Sciences São Paulo State University (Unesp), Botucatu-
Idioma: dc.languageen-
Relação: dc.relationBiomacromolecules-
???dc.source???: dc.sourceScopus-
Título: dc.titleRegioselective Protection and Deprotection of Nanocellulose Molecular Design Architecture: Robust Platform for Multifunctional Applications-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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