Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization

Detalhes bibliográficos
Autor(a) principal: Zucolotto, Monica
Data de Publicação: 1995
Outros Autores: Rocha, Edmundo Cidade da, Holleben, Maria Luiza Ambros von
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/275047
Resumo: The pulverized, molten or solubilized, rosin from Pinus elliotti was disproportionated by using S, NaI, S and I₂ or Pd/C as catalysts. The disproportionated rosin was saponified in aqueous or alcoholic KOH solutions. The quality control of the resulting soaps revealed the disproportionation in the presence of Pd/C and of S and l₂ yields potassium abietate and dehydroabietate ratio in accordance to the industrial specifications, thus being adequate for use as emulsifiers.
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spelling Zucolotto, MonicaRocha, Edmundo Cidade daHolleben, Maria Luiza Ambros von2024-04-25T05:50:26Z19950100-4042http://hdl.handle.net/10183/275047000259740The pulverized, molten or solubilized, rosin from Pinus elliotti was disproportionated by using S, NaI, S and I₂ or Pd/C as catalysts. The disproportionated rosin was saponified in aqueous or alcoholic KOH solutions. The quality control of the resulting soaps revealed the disproportionation in the presence of Pd/C and of S and l₂ yields potassium abietate and dehydroabietate ratio in accordance to the industrial specifications, thus being adequate for use as emulsifiers.application/pdfengQuimica Nova. Sao Paulo, S.P. Vol. 18, n. 1 (1995), p. 78-79Resinas naturaisBreu : DesproporcionaçãoPolimerizacao : EmulsificantesRosinEmulsifierPolymerazationDisproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerizationinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000259740.pdf.txt000259740.pdf.txtExtracted Texttext/plain0http://www.lume.ufrgs.br/bitstream/10183/275047/2/000259740.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD52ORIGINAL000259740.pdfTexto completo (inglês)application/pdf142062http://www.lume.ufrgs.br/bitstream/10183/275047/1/000259740.pdfa47cd0b6c49c11e9c12ace4a9cb321ebMD5110183/2750472024-04-26 05:32:38.77354oai:www.lume.ufrgs.br:10183/275047Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2024-04-26T08:32:38Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
title Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
spellingShingle Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
Zucolotto, Monica
Resinas naturais
Breu : Desproporcionação
Polimerizacao : Emulsificantes
Rosin
Emulsifier
Polymerazation
title_short Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
title_full Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
title_fullStr Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
title_full_unstemmed Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
title_sort Disproportionation of rosin from Pinus elliotti : obtention of emulsifier for polymerization
author Zucolotto, Monica
author_facet Zucolotto, Monica
Rocha, Edmundo Cidade da
Holleben, Maria Luiza Ambros von
author_role author
author2 Rocha, Edmundo Cidade da
Holleben, Maria Luiza Ambros von
author2_role author
author
dc.contributor.author.fl_str_mv Zucolotto, Monica
Rocha, Edmundo Cidade da
Holleben, Maria Luiza Ambros von
dc.subject.por.fl_str_mv Resinas naturais
Breu : Desproporcionação
Polimerizacao : Emulsificantes
topic Resinas naturais
Breu : Desproporcionação
Polimerizacao : Emulsificantes
Rosin
Emulsifier
Polymerazation
dc.subject.eng.fl_str_mv Rosin
Emulsifier
Polymerazation
description The pulverized, molten or solubilized, rosin from Pinus elliotti was disproportionated by using S, NaI, S and I₂ or Pd/C as catalysts. The disproportionated rosin was saponified in aqueous or alcoholic KOH solutions. The quality control of the resulting soaps revealed the disproportionation in the presence of Pd/C and of S and l₂ yields potassium abietate and dehydroabietate ratio in accordance to the industrial specifications, thus being adequate for use as emulsifiers.
publishDate 1995
dc.date.issued.fl_str_mv 1995
dc.date.accessioned.fl_str_mv 2024-04-25T05:50:26Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/275047
dc.identifier.issn.pt_BR.fl_str_mv 0100-4042
dc.identifier.nrb.pt_BR.fl_str_mv 000259740
identifier_str_mv 0100-4042
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Quimica Nova. Sao Paulo, S.P. Vol. 18, n. 1 (1995), p. 78-79
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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