Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
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=S1516-14392011000400007 |
Resumo: | In order to study the influence of different sulfonation routes on its thermal and structural properties sulfonated polyaniline (SPAni) was prepared. FT-IR revealed that the formation of PAni salt or ring sulfonation depends on the route. UV-visible spectra pointed out that the level of the PAni protonation was dependent on the sulfonation route. A new approach was given for TG/DTG and DSC results correlating different energy levels with the distinguished sulfonation routes. The TG/DTG degradation steps and the amount of the released material corroborated the structural differences of the polyanilines. For each DSC first regime of heating, a broad and intense peak (from -30 to 250 ºC) with different level of energy was noticed. That peak could be ascribed to the multiple relaxations and breaking of the PAni intra and inter hydrogen bonds after sulfonation. |
id |
ABMABCABPOL-1_4e7b455926f416875995ad98b18916c9 |
---|---|
oai_identifier_str |
oai:scielo:S1516-14392011000400007 |
network_acronym_str |
ABMABCABPOL-1 |
network_name_str |
Materials research (São Carlos. Online) |
repository_id_str |
|
spelling |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristicsSPAniTG/DTGDSCFT-IRUV-visIn order to study the influence of different sulfonation routes on its thermal and structural properties sulfonated polyaniline (SPAni) was prepared. FT-IR revealed that the formation of PAni salt or ring sulfonation depends on the route. UV-visible spectra pointed out that the level of the PAni protonation was dependent on the sulfonation route. A new approach was given for TG/DTG and DSC results correlating different energy levels with the distinguished sulfonation routes. The TG/DTG degradation steps and the amount of the released material corroborated the structural differences of the polyanilines. For each DSC first regime of heating, a broad and intense peak (from -30 to 250 ºC) with different level of energy was noticed. That peak could be ascribed to the multiple relaxations and breaking of the PAni intra and inter hydrogen bonds after sulfonation.ABM, ABC, ABPol2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400007Materials Research v.14 n.4 2011reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392011005000070info:eu-repo/semantics/openAccessMendes,Luis ClaudioFalco,Ana Paula SantiagoPinho,Magali SilveiraMarques,Priscila Oliveiraeng2011-12-13T00:00:00Zoai:scielo:S1516-14392011000400007Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-12-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
title |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
spellingShingle |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics Mendes,Luis Claudio SPAni TG/DTG DSC FT-IR UV-vis |
title_short |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
title_full |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
title_fullStr |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
title_full_unstemmed |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
title_sort |
Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics |
author |
Mendes,Luis Claudio |
author_facet |
Mendes,Luis Claudio Falco,Ana Paula Santiago Pinho,Magali Silveira Marques,Priscila Oliveira |
author_role |
author |
author2 |
Falco,Ana Paula Santiago Pinho,Magali Silveira Marques,Priscila Oliveira |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mendes,Luis Claudio Falco,Ana Paula Santiago Pinho,Magali Silveira Marques,Priscila Oliveira |
dc.subject.por.fl_str_mv |
SPAni TG/DTG DSC FT-IR UV-vis |
topic |
SPAni TG/DTG DSC FT-IR UV-vis |
description |
In order to study the influence of different sulfonation routes on its thermal and structural properties sulfonated polyaniline (SPAni) was prepared. FT-IR revealed that the formation of PAni salt or ring sulfonation depends on the route. UV-visible spectra pointed out that the level of the PAni protonation was dependent on the sulfonation route. A new approach was given for TG/DTG and DSC results correlating different energy levels with the distinguished sulfonation routes. The TG/DTG degradation steps and the amount of the released material corroborated the structural differences of the polyanilines. For each DSC first regime of heating, a broad and intense peak (from -30 to 250 ºC) with different level of energy was noticed. That peak could be ascribed to the multiple relaxations and breaking of the PAni intra and inter hydrogen bonds after sulfonation. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-01 |
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=S1516-14392011000400007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392011005000070 |
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.14 n.4 2011 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_ |
1754212660455407616 |