Thermal stability, degradation kinetics, and molecular weight of organosolv lignins from Pinus radiata

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dc.contributor.authorDomínguez Toribio, Juan Carlos
dc.contributor.authorSantos, Tamara
dc.contributor.authorRigual Hernández, Victoria De Los Ángeles
dc.contributor.authorOliet Pala, María Mercedes
dc.contributor.authorAlonso Rubio, María Virginia
dc.contributor.authorRodriguez, Francisco
dc.date.accessioned2024-01-19T10:14:45Z
dc.date.available2024-01-19T10:14:45Z
dc.date.issued2018
dc.description.abstractSeventeen organosolv lignin samples were obtained from the black liquor of an ethanol–water treatment using Pinus radiata as raw material under varied conditions applying an experimental matrix designed by employing response surface methodology (RSM). The thermal degradation of lignin samples was studied by a thermogravimetric analyzer (TGA) under an oxidative atmosphere. The thermal stability was estimated by the degradation temperature at 10% conversion (T10%), and the values of the kinetic parameters of the degradation process of lignins were determined using a 3-Gaussian distributed activation energy model (DAEM). The total distribution of the activation energy was obtained, and the mean activation energies of the Gaussian distributions were in agreement with the literature. In addition, the organosolv lignins were characterized by gel permeation chromatography (GPC) to determine their molecular weight distributions. Processing conditions affected the molecular weight of the extracted organosolv ethanol lignins and consequently influenced their thermal stabilities.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationDomínguez, J. C., et al. «Thermal Stability, Degradation Kinetics, and Molecular Weight of Organosolv Lignins from Pinus Radiata». Industrial Crops and Products, vol. 111, enero de 2018, pp. 889-98. https://doi.org/10.1016/j.indcrop.2017.10.059.
dc.identifier.doi10.1016/j.indcrop.2017.10.059
dc.identifier.issn0926-6690
dc.identifier.officialurlhttps://doi.org/10.1016/j.indcrop.2017.10.059
dc.identifier.urihttps://hdl.handle.net/20.500.14352/94004
dc.language.isoeng
dc.page.final898
dc.page.initial889
dc.rights.accessRightsrestricted access
dc.subject.keywordLignin Organosolv
dc.subject.keywordThermal stability
dc.subject.keywordDaem
dc.subject.keywordMolecular weight
dc.subject.ucmCiencias
dc.subject.unesco33 Ciencias Tecnológicas
dc.titleThermal stability, degradation kinetics, and molecular weight of organosolv lignins from Pinus radiata
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number111
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery5e33c9e2-bdb8-405e-86e0-c261c6c9cbe2
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