Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios

Detalhes bibliográficos
Autor(a) principal: Santim, Ricardo Hidalgo
Data de Publicação: 2016
Outros Autores: de Aquino, Hermes Adolfo [UNESP], Malmonge, José Antonio [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/MSF.869.391
http://hdl.handle.net/11449/168965
Resumo: Polypyrrole nanoparticles (PPy) were synthesized by the chemical oxidative microemulsion of pyrrole (Py) monomer using ammonium persulfate (APS) as an oxidant agent and sodium dodecylsulfate (SDS) as a surfactant at 28°C and 0°C. Different Py:APS:SDS molar ratios were used, and the properties of the resulting material were examined by four-probe DC electrical conductivity, ultraviolet-visible-near infrared (UV-vis-Nir), and Fourier-transform infrared (FTIR) spectroscopies as well as field-emission scanning electron microscopy (FESEM). UV-vis-Nir and FTIR spectra show the formation of a polaron band owing to the doping of PPy by SDS. The electrical conductivity and morphology of PPy nanoparticles depend on the synthesis conditions. Electrical conductivity of ~95.3×10-3 S/cm was achieved for PPy synthesized at 0°C. For the same Py:APS:SDS molar ratio, the nanoparticle shape changed from cylindrical to spherical upon simply lowering the synthesis temperature.
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spelling Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratiosMicroemulsion polymerizationNanoparticlesPolypyrrolePolypyrrole nanoparticles (PPy) were synthesized by the chemical oxidative microemulsion of pyrrole (Py) monomer using ammonium persulfate (APS) as an oxidant agent and sodium dodecylsulfate (SDS) as a surfactant at 28°C and 0°C. Different Py:APS:SDS molar ratios were used, and the properties of the resulting material were examined by four-probe DC electrical conductivity, ultraviolet-visible-near infrared (UV-vis-Nir), and Fourier-transform infrared (FTIR) spectroscopies as well as field-emission scanning electron microscopy (FESEM). UV-vis-Nir and FTIR spectra show the formation of a polaron band owing to the doping of PPy by SDS. The electrical conductivity and morphology of PPy nanoparticles depend on the synthesis conditions. Electrical conductivity of ~95.3×10-3 S/cm was achieved for PPy synthesized at 0°C. For the same Py:APS:SDS molar ratio, the nanoparticle shape changed from cylindrical to spherical upon simply lowering the synthesis temperature.Instituto de Ciências Agrárias Universidade Federal de Minas Gerais (UFMG)Departamento de Física e Química Faculdade de Engenharia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Departamento de Física e Química Faculdade de Engenharia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Universidade Federal de Minas Gerais (UFMG)Universidade Estadual Paulista (Unesp)Santim, Ricardo Hidalgode Aquino, Hermes Adolfo [UNESP]Malmonge, José Antonio [UNESP]2018-12-11T16:43:48Z2018-12-11T16:43:48Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject391-395application/pdfhttp://dx.doi.org/10.4028/www.scientific.net/MSF.869.391Materials Science Forum, v. 869, p. 391-395.0255-5476http://hdl.handle.net/11449/16896510.4028/www.scientific.net/MSF.869.3912-s2.0-849884480982-s2.0-84988448098.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science Forum0,180info:eu-repo/semantics/openAccess2023-12-17T06:16:59Zoai:repositorio.unesp.br:11449/168965Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:32:44.929070Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
title Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
spellingShingle Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
Santim, Ricardo Hidalgo
Microemulsion polymerization
Nanoparticles
Polypyrrole
title_short Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
title_full Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
title_fullStr Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
title_full_unstemmed Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
title_sort Fabrication of polypyrrole nanoparticles using microemulsion polymerization for diferent Py/APS/SDS molar ratios
author Santim, Ricardo Hidalgo
author_facet Santim, Ricardo Hidalgo
de Aquino, Hermes Adolfo [UNESP]
Malmonge, José Antonio [UNESP]
author_role author
author2 de Aquino, Hermes Adolfo [UNESP]
Malmonge, José Antonio [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Federal de Minas Gerais (UFMG)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Santim, Ricardo Hidalgo
de Aquino, Hermes Adolfo [UNESP]
Malmonge, José Antonio [UNESP]
dc.subject.por.fl_str_mv Microemulsion polymerization
Nanoparticles
Polypyrrole
topic Microemulsion polymerization
Nanoparticles
Polypyrrole
description Polypyrrole nanoparticles (PPy) were synthesized by the chemical oxidative microemulsion of pyrrole (Py) monomer using ammonium persulfate (APS) as an oxidant agent and sodium dodecylsulfate (SDS) as a surfactant at 28°C and 0°C. Different Py:APS:SDS molar ratios were used, and the properties of the resulting material were examined by four-probe DC electrical conductivity, ultraviolet-visible-near infrared (UV-vis-Nir), and Fourier-transform infrared (FTIR) spectroscopies as well as field-emission scanning electron microscopy (FESEM). UV-vis-Nir and FTIR spectra show the formation of a polaron band owing to the doping of PPy by SDS. The electrical conductivity and morphology of PPy nanoparticles depend on the synthesis conditions. Electrical conductivity of ~95.3×10-3 S/cm was achieved for PPy synthesized at 0°C. For the same Py:APS:SDS molar ratio, the nanoparticle shape changed from cylindrical to spherical upon simply lowering the synthesis temperature.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
2018-12-11T16:43:48Z
2018-12-11T16:43:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/MSF.869.391
Materials Science Forum, v. 869, p. 391-395.
0255-5476
http://hdl.handle.net/11449/168965
10.4028/www.scientific.net/MSF.869.391
2-s2.0-84988448098
2-s2.0-84988448098.pdf
url http://dx.doi.org/10.4028/www.scientific.net/MSF.869.391
http://hdl.handle.net/11449/168965
identifier_str_mv Materials Science Forum, v. 869, p. 391-395.
0255-5476
10.4028/www.scientific.net/MSF.869.391
2-s2.0-84988448098
2-s2.0-84988448098.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Science Forum
0,180
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 391-395
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129217577091072

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