Materials produced from plant biomass: part III: degradation kinetics and hydrogen bonding in lignin
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | |
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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Materials research (São Carlos. Online) |
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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 |
_version_ |
1754212663235182592 |