Synthesis of carboxymethylcellulose from corn straw waste: comparison between pre-treatments with sodium hydroxide and low-cost ionic liquid

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dc.contributor.advisorOrcidhttps://orcid.org/0000-0002-5428-768X
dc.contributor.authorBESSA, B. G.
dc.contributor.authorSANTOS, H. P. DOS
dc.contributor.authorMURAKAMI, V. T.
dc.contributor.authorFANTIM, W. M.
dc.contributor.authorBERGAMO, Y. DE. C.
dc.contributor.authorAndreia de Araújo Morandim Giannetti
dc.date.accessioned2023-06-01T06:05:56Z
dc.date.available2023-06-01T06:05:56Z
dc.date.issued2022-03-05
dc.description.abstract© 2021, Iran Polymer and Petrochemical Institute.In this work, the possibility of using corn straw to obtain carboxymethylcellulose (CMC) was verified. However, to obtain CMC from lignocellulosic residues, it is necessary to carry out initial treatments to reduce the levels of lignin and hemicellulose. In this context, studies have been conducted to enable the use of an ionic liquid (IL). The n-butylammonium acetate was used to treat the straw instead of the pulping stage for the subsequent attainment of CMC. For comparison, we determined the composition of the resulting material after the stages of NaOH pulping (NaP) or treatment with the IL (at 80 °C—ILP80 and 120 °C—ILP120) and bleaching, to analyze the purity of the cellulose obtained. It was also possible to verify that the treatment at 120 °C was more effective to remove inorganic materials and lignin, leading to cellulose with 91.45 ± 0.11% purity when compared with its treatment at 80 °C. CMC was successfully synthesized and presented similar morphologies accordingly. Consequently, the attainment of CMC was confirmed by analyzing the data obtained via FTIR, NMR, and XRD techniques, as well as the analyses of degree of substitution. It was also possible to recover the ionic liquid at a purity of 95.93%. Graphical abstract: [Figure not available: see fulltext.]
dc.description.firstpage357
dc.description.issuenumber3
dc.description.lastpage366
dc.description.volume31
dc.identifier.citationBESSA, B. G.; SANTOS, H. P. DOS; MURAKAMI, V. T.; FANTIM, W. M.; BERGAMO, Y. DE. C.; GIANNETTI, A. DE A. M. Synthesis of carboxymethylcellulose from corn straw waste: comparison between pre-treatments with sodium hydroxide and low-cost ionic liquid. Iranian Polymer Journal, v. 31, n. 3, p. 357-366, march, 2022.
dc.identifier.doi10.1007/s13726-021-00996-9
dc.identifier.issn1735-5265
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4800
dc.relation.ispartofIranian Polymer Journal (English Edition)
dc.rightsAcesso Restrito
dc.subject.otherlanguageCarboxymethylcellulose
dc.subject.otherlanguageCorn straw
dc.subject.otherlanguageIonic liquid treatment
dc.subject.otherlanguageLignocellulosic material
dc.subject.otherlanguageWaste
dc.titleSynthesis of carboxymethylcellulose from corn straw waste: comparison between pre-treatments with sodium hydroxide and low-cost ionic liquid
dc.typeArtigo
fei.scopus.citations3
fei.scopus.eid2-s2.0-85120082884
fei.scopus.subjectCarboxymethyl cellulose
fei.scopus.subjectCorn straws
fei.scopus.subjectInitial treatment
fei.scopus.subjectIonic liquid treatment
fei.scopus.subjectLignocellulosic material
fei.scopus.subjectLignocellulosic residues
fei.scopus.subjectLiquid treatment
fei.scopus.subjectLow-costs
fei.scopus.subjectPre-treatments
fei.scopus.subjectPulping stages
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85120082884&origin=inward
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