Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA

Detalhes bibliográficos
Autor(a) principal: Silva,Paloma L. da
Data de Publicação: 2016
Outros Autores: Gomes,Anida M. M., Ricardo,Nágila M. P. S., Machado,Terezinha F.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400450
Resumo: The aims of this study were to produce films from phosphorylated starch/chitosan/PVA blends and evaluate their physicochemical properties. The film properties were dependent on the starch percentage in the blend. The infrared spectra of the blends showed the appearance of bands at 1716 and 1733 cm-1 (stretching C = O of PVA acetate residues) and 1556 cm-1 (amide II deformation of the chitosan) indicating the incorporation of these components into the blends. The films with high phosphorylated starch content showed low thermal and mechanical strength and high water absorption capacity while blends with higher content of chitosan and PVA showed good mechanical properties and low water vapor permeability. Films containing 40% and 20% starch showed excellent properties such as high water absorption capacity and biodegradability for use as bandages and agricultural films and also as a source of organic matter in soil.
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spelling Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVAblendsstarchpermeabilitydressingThe aims of this study were to produce films from phosphorylated starch/chitosan/PVA blends and evaluate their physicochemical properties. The film properties were dependent on the starch percentage in the blend. The infrared spectra of the blends showed the appearance of bands at 1716 and 1733 cm-1 (stretching C = O of PVA acetate residues) and 1556 cm-1 (amide II deformation of the chitosan) indicating the incorporation of these components into the blends. The films with high phosphorylated starch content showed low thermal and mechanical strength and high water absorption capacity while blends with higher content of chitosan and PVA showed good mechanical properties and low water vapor permeability. Films containing 40% and 20% starch showed excellent properties such as high water absorption capacity and biodegradability for use as bandages and agricultural films and also as a source of organic matter in soil.Sociedade Brasileira de Química2016-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400450Química Nova v.39 n.4 2016reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0100-4042.20160043info:eu-repo/semantics/openAccessSilva,Paloma L. daGomes,Anida M. M.Ricardo,Nágila M. P. S.Machado,Terezinha F.por2016-05-25T00:00:00Zoai:scielo:S0100-40422016000400450Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2016-05-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
title Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
spellingShingle Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
Silva,Paloma L. da
blends
starch
permeability
dressing
title_short Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
title_full Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
title_fullStr Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
title_full_unstemmed Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
title_sort Elaboração e caracterização de blendas de amido fosforilado com quitosana e PVA
author Silva,Paloma L. da
author_facet Silva,Paloma L. da
Gomes,Anida M. M.
Ricardo,Nágila M. P. S.
Machado,Terezinha F.
author_role author
author2 Gomes,Anida M. M.
Ricardo,Nágila M. P. S.
Machado,Terezinha F.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva,Paloma L. da
Gomes,Anida M. M.
Ricardo,Nágila M. P. S.
Machado,Terezinha F.
dc.subject.por.fl_str_mv blends
starch
permeability
dressing
topic blends
starch
permeability
dressing
description The aims of this study were to produce films from phosphorylated starch/chitosan/PVA blends and evaluate their physicochemical properties. The film properties were dependent on the starch percentage in the blend. The infrared spectra of the blends showed the appearance of bands at 1716 and 1733 cm-1 (stretching C = O of PVA acetate residues) and 1556 cm-1 (amide II deformation of the chitosan) indicating the incorporation of these components into the blends. The films with high phosphorylated starch content showed low thermal and mechanical strength and high water absorption capacity while blends with higher content of chitosan and PVA showed good mechanical properties and low water vapor permeability. Films containing 40% and 20% starch showed excellent properties such as high water absorption capacity and biodegradability for use as bandages and agricultural films and also as a source of organic matter in soil.
publishDate 2016
dc.date.none.fl_str_mv 2016-05-01
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=S0100-40422016000400450
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400450
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.5935/0100-4042.20160043
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 Química Nova v.39 n.4 2016
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
_version_ 1750318117494456320

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