Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation

Detalhes bibliográficos
Autor(a) principal: Tampau, Alina
Data de Publicação: 2020
Outros Autores: González-Martínez, Chelo, Vicente, A. A., Chiralt, Amparo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/65780
Resumo: Data Availability: The raw/processed data required to reproduce these findings cannot be shared at this time due to legal or ethical reasons.
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spelling Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisationAminolisationSurface activationPoly(lactic acid)Poly(vinyl alcohol)CarvacrolBilayer assemblyScience & TechnologyData Availability: The raw/processed data required to reproduce these findings cannot be shared at this time due to legal or ethical reasons.Poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) present complementary barrier properties, and their combination in multilayer assemblies (laminates) could provide materials with more effective barrier capacity for food packaging purposes. However, their low chemical affinity compromises adequate polymer adhesion. Surface free energy modification of thermo-processed PLA films through treatment with 1,6-hexanediamine was used to enhance adhesion with polar PVA aqueous solutions. Treatments of 1 and 3 min increased the polar component of the solid surface tension, while treatments above 10 min provoked a corrosive effect in the films structure. Extensibility analyses of PVA solutions loaded with carvacrol (15 wt.%) and different Tween 85 ratios on PLA-activated surfaces allowed the selection of the 1-min aminolysed surface for obtaining PLA-PVA bilayers, by casting PVA solutions on the PLA films. This study revealed that despite aminolisation enhancing the PLA surface affinity for aqueous PVA solutions, casting-obtained bilayers presented limited oxygen barrier effectiveness due to heterogeneous thickness of PVA layer in the laminates.The authors acknowledge the financial support provided by the Ministerio de Economia y Competitividad (MINECO) of Spain (project AGL2016-76699-R). The author A. Tampau thanks MINECO for the pre-doctoral research grant #BES-2014-068100.info:eu-repo/semantics/publishedVersionSpringer NatureUniversidade do MinhoTampau, AlinaGonzález-Martínez, CheloVicente, A. A.Chiralt, Amparo2020-06-182020-06-18T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/65780engTampau, Alina; González-Martínez, Chelo; Vicente, António A.; Chiralt, Amparo, Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation. Food and Bioprocess Technology, 13, 1215-1228, 20201935-51301935-514910.1007/s11947-020-02475-0http://www.springer.com/food+science/journal/11947info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:42:26Zoai:repositorium.sdum.uminho.pt:1822/65780Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:39:40.893562Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
title Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
spellingShingle Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
Tampau, Alina
Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
Science & Technology
title_short Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
title_full Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
title_fullStr Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
title_full_unstemmed Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
title_sort Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation
author Tampau, Alina
author_facet Tampau, Alina
González-Martínez, Chelo
Vicente, A. A.
Chiralt, Amparo
author_role author
author2 González-Martínez, Chelo
Vicente, A. A.
Chiralt, Amparo
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Tampau, Alina
González-Martínez, Chelo
Vicente, A. A.
Chiralt, Amparo
dc.subject.por.fl_str_mv Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
Science & Technology
topic Aminolisation
Surface activation
Poly(lactic acid)
Poly(vinyl alcohol)
Carvacrol
Bilayer assembly
Science & Technology
description Data Availability: The raw/processed data required to reproduce these findings cannot be shared at this time due to legal or ethical reasons.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-18
2020-06-18T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/65780
url http://hdl.handle.net/1822/65780
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Tampau, Alina; González-Martínez, Chelo; Vicente, António A.; Chiralt, Amparo, Enhancement of PLA-PVA surface adhesion in bilayer assemblies by PLA aminolisation. Food and Bioprocess Technology, 13, 1215-1228, 2020
1935-5130
1935-5149
10.1007/s11947-020-02475-0
http://www.springer.com/food+science/journal/11947
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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