Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin

Detalhes bibliográficos
Autor(a) principal: Poletto,Matheus
Data de Publicação: 2013
Outros Autores: Zattera,Ademir J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500016
Resumo: In this study Klason lignins from Eucalyptus grandis (LEUG) and Pinus taeda (LPIT) were characterized using Fourier transform infrared (FTIR) spectroscopy and thermogravimetry (TGA). The degradation kinetic parameters were determined by TGA using the Kissinger method. Thermogravimetric results showed that LPIT had higher thermal stability and also higher activation energy than LEUG. FTIR results showed that the average strength of intermolecular interactions and enthalpy of hydrogen bond formation among the phenolic groups are higher for LPIT than for LEUG. The results demonstrated that differences between thermal stability and degradation mechanisms might be associated with differences in hydrogen bonding in lignin.
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spelling Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in ligninEucalyptus grandisPinus taedaligninFTIR spectroscopythermal degradationIn this study Klason lignins from Eucalyptus grandis (LEUG) and Pinus taeda (LPIT) were characterized using Fourier transform infrared (FTIR) spectroscopy and thermogravimetry (TGA). The degradation kinetic parameters were determined by TGA using the Kissinger method. Thermogravimetric results showed that LPIT had higher thermal stability and also higher activation energy than LEUG. FTIR results showed that the average strength of intermolecular interactions and enthalpy of hydrogen bond formation among the phenolic groups are higher for LPIT than for LEUG. The results demonstrated that differences between thermal stability and degradation mechanisms might be associated with differences in hydrogen bonding in lignin.ABM, ABC, ABPol2013-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500016Materials Research v.16 n.5 2013reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000112info:eu-repo/semantics/openAccessPoletto,MatheusZattera,Ademir J.eng2013-10-18T00:00:00Zoai:scielo:S1516-14392013000500016Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2013-10-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
title Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
spellingShingle Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
Poletto,Matheus
Eucalyptus grandis
Pinus taeda
lignin
FTIR spectroscopy
thermal degradation
title_short Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
title_full Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
title_fullStr Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
title_full_unstemmed Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
title_sort Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
author Poletto,Matheus
author_facet Poletto,Matheus
Zattera,Ademir J.
author_role author
author2 Zattera,Ademir J.
author2_role author
dc.contributor.author.fl_str_mv Poletto,Matheus
Zattera,Ademir J.
dc.subject.por.fl_str_mv Eucalyptus grandis
Pinus taeda
lignin
FTIR spectroscopy
thermal degradation
topic Eucalyptus grandis
Pinus taeda
lignin
FTIR spectroscopy
thermal degradation
description In this study Klason lignins from Eucalyptus grandis (LEUG) and Pinus taeda (LPIT) were characterized using Fourier transform infrared (FTIR) spectroscopy and thermogravimetry (TGA). The degradation kinetic parameters were determined by TGA using the Kissinger method. Thermogravimetric results showed that LPIT had higher thermal stability and also higher activation energy than LEUG. FTIR results showed that the average strength of intermolecular interactions and enthalpy of hydrogen bond formation among the phenolic groups are higher for LPIT than for LEUG. The results demonstrated that differences between thermal stability and degradation mechanisms might be associated with differences in hydrogen bonding in lignin.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000500016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000112
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.16 n.5 2013
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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