Preparation and characterization of PVA/PASA-PVA/PDDAB bipolar membrane
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
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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Journal of the Brazilian Chemical Society (Online) |
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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 |
_version_ |
1750318170196934656 |