INFLUENCE OF REACTION TIME ON THE STRUCTURE OF POLYANILINE SYNTHESIZED ON A PRE-PILOT SCALE

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dc.citation.issue1
dc.citation.volume35
dc.contributor.authorCarvalho Mazzeu, Maria Alice
dc.contributor.authorFaria, Lohana Komorek
dc.contributor.authorBaldan, Mauricio Ribeiro
dc.contributor.authorRezende, Mirabel Cerqueira [UNIFESP]
dc.contributor.authorGoncalves, Emerson Sarmento
dc.coverageSao Paulo
dc.date.accessioned2020-07-02T18:51:51Z
dc.date.available2020-07-02T18:51:51Z
dc.date.issued2018
dc.description.abstractThe aim of this work is to follow the structural variations of polyaniline (PAni) obtained by chemical oxidation on a pre-pilot scale, with different reaction times. Synthesis of PAni is well known, but when it is carried out on a pre-pilot scale, several factors can lead to structural changes and understanding these changes is important to improve controls on the synthesis process. The polymers formed were characterized by spectroscopic techniques (Raman spectroscopy, Fourier Transform Infrared - FTIR and UV-Visible). Degree of oxidation and yield were calculated for each reaction time. The analysis by FTIR, the calculated degree of oxidation and the yield showed significant changes in polymer structure at reaction times of 65 and 80 min. This result was attributed to the excessive oxidation of PAni, with the breaking of its polymer chain. The changes observed in the structure of PAni gave subsidies to the optimization of the process of obtaining polyaniline by chemical synthesis.en
dc.description.affiliationIndustrialFostering & Coordinat Inst IFI, DCTA, BR-12228901 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationVale Paraiba Univ UNIVAP, FEAU, BR-12228901 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationInst Aeronaut & Space IAE, DCTA, Mat Div, Phys Chem Characterizat Lab, BR-12228904 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationTechnol Inst Aeronaut ITA, DCTA, BR-12228900 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationNatl Inst Space Res INPE, Associated Lab Sensors, BR-12227010 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationFed Univ Sao Paulo UNIFESP, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnifespFed Univ Sao Paulo UNIFESP, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.format.extent123-130
dc.identifierhttp://dx.doi.org/10.1590/0104-6632.20180351s20160201
dc.identifier.citationBrazilian Journal Of Chemical Engineering. Sao Paulo, v. 35, n. 1, p. 123-130, 2018.
dc.identifier.doi10.1590/0104-6632.20180351s20160201
dc.identifier.fileWOS000431180900012.pdf
dc.identifier.issn0104-6632
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/53751
dc.identifier.wosWOS:000431180900012
dc.language.isoeng
dc.publisherBrazilian Soc Chemical Eng
dc.relation.ispartofBrazilian Journal Of Chemical Engineering
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectChemical reactoren
dc.subjectspectroscopyen
dc.subjectsynthesisen
dc.subjectconducting polymeren
dc.titleINFLUENCE OF REACTION TIME ON THE STRUCTURE OF POLYANILINE SYNTHESIZED ON A PRE-PILOT SCALEen
dc.typeinfo:eu-repo/semantics/article
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