Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane

Detalhes bibliográficos
Autor(a) principal: Espinoza-Gómez,Heriberto
Data de Publicação: 2009
Outros Autores: Flores-López,Lucía Z., Rogel-Hernández,Eduardo, Martínez,Manuel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000700014
Resumo: Bipolar membranes (BMP) were prepared by bonding together separate anion and cation exchange membrane. For the preparation of the cation selective layer, aqueous solution of PVA [poly(vinyl alcohol)], and PASA [poly(anetholesulfonic acid sodium salt)], where the ratio of PVA/PASA was changed for the control of the membrane charge density, were cast for negatively charged membranes. These membranes were annealed at 100 ºC for 45 min and cross-linked in an aqueous solution containing 10% Na2SO4, 1.5% H2SO4, and 0.5% glutaraldehyde in order to control water content of the gel membranes. The anion selective layers were prepared by dispersing a solution of PVA and PDDAB [poly(diallyldiethylammonium bromide)] in DMF, where the ratio of PVA/PDDAB was changed for the membrane charge density control. The electrical resistance of BMP formed by this methodology was slightly increased while the selectivity decreased, while their permselectivity did not change with the acid or alkaline post-treatment.
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spelling Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membranebipolar membranePVA/PASAPVA/PDDABbipolar membrane characterizationBipolar membranes (BMP) were prepared by bonding together separate anion and cation exchange membrane. For the preparation of the cation selective layer, aqueous solution of PVA [poly(vinyl alcohol)], and PASA [poly(anetholesulfonic acid sodium salt)], where the ratio of PVA/PASA was changed for the control of the membrane charge density, were cast for negatively charged membranes. These membranes were annealed at 100 ºC for 45 min and cross-linked in an aqueous solution containing 10% Na2SO4, 1.5% H2SO4, and 0.5% glutaraldehyde in order to control water content of the gel membranes. The anion selective layers were prepared by dispersing a solution of PVA and PDDAB [poly(diallyldiethylammonium bromide)] in DMF, where the ratio of PVA/PDDAB was changed for the membrane charge density control. The electrical resistance of BMP formed by this methodology was slightly increased while the selectivity decreased, while their permselectivity did not change with the acid or alkaline post-treatment.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000700014Journal of the Brazilian Chemical Society v.20 n.7 2009reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532009000700014info:eu-repo/semantics/openAccessEspinoza-Gómez,HeribertoFlores-López,Lucía Z.Rogel-Hernández,EduardoMartínez,Manueleng2009-08-27T00:00:00Zoai:scielo:S0103-50532009000700014Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2009-08-27T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
title Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
spellingShingle Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
Espinoza-Gómez,Heriberto
bipolar membrane
PVA/PASA
PVA/PDDAB
bipolar membrane characterization
title_short Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
title_full Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
title_fullStr Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
title_full_unstemmed Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
title_sort Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
author Espinoza-Gómez,Heriberto
author_facet Espinoza-Gómez,Heriberto
Flores-López,Lucía Z.
Rogel-Hernández,Eduardo
Martínez,Manuel
author_role author
author2 Flores-López,Lucía Z.
Rogel-Hernández,Eduardo
Martínez,Manuel
author2_role author
author
author
dc.contributor.author.fl_str_mv Espinoza-Gómez,Heriberto
Flores-López,Lucía Z.
Rogel-Hernández,Eduardo
Martínez,Manuel
dc.subject.por.fl_str_mv bipolar membrane
PVA/PASA
PVA/PDDAB
bipolar membrane characterization
topic bipolar membrane
PVA/PASA
PVA/PDDAB
bipolar membrane characterization
description Bipolar membranes (BMP) were prepared by bonding together separate anion and cation exchange membrane. For the preparation of the cation selective layer, aqueous solution of PVA [poly(vinyl alcohol)], and PASA [poly(anetholesulfonic acid sodium salt)], where the ratio of PVA/PASA was changed for the control of the membrane charge density, were cast for negatively charged membranes. These membranes were annealed at 100 ºC for 45 min and cross-linked in an aqueous solution containing 10% Na2SO4, 1.5% H2SO4, and 0.5% glutaraldehyde in order to control water content of the gel membranes. The anion selective layers were prepared by dispersing a solution of PVA and PDDAB [poly(diallyldiethylammonium bromide)] in DMF, where the ratio of PVA/PDDAB was changed for the membrane charge density control. The electrical resistance of BMP formed by this methodology was slightly increased while the selectivity decreased, while their permselectivity did not change with the acid or alkaline post-treatment.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
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=S0103-50532009000700014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000700014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532009000700014
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.20 n.7 2009
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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