High Amorphous Vinyl Alcohol-Silica Bionanocomposites: Tuning Interface Interactions with Ionic Liquids

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dc.contributor.authorDonato K.Z.
dc.contributor.authorLavorgna M.
dc.contributor.authorDonato R.K.
dc.contributor.authorRaucci M.G.
dc.contributor.authorBuonocore G.G.
dc.contributor.authorAmbrosio L.
dc.contributor.authorSchrekker H.S.
dc.contributor.authorMauler R.S.
dc.date.accessioned2024-03-13T00:50:01Z
dc.date.available2024-03-13T00:50:01Z
dc.date.issued2017
dc.description.abstract© 2016 American Chemical Society.Herein, we demonstrate the effect of imidazolium ionic liquids (IL) applied as additives in the in situ formation of high amorphous vinyl alcohol (HAVOH)-silica bionanocomposites, using a simple sol-gel process approach. A complementary set of alkyl-, ether-, and carboxy-functionalized IL was used, allowing silica structure control and polymer-silica interphase tuning. Consequently, hybrids with diverse morphologies, as well as improved thermo-mechanical and barrier properties, were obtained. This diversity also highlighted the systems' dependency on the IL's molecular structure, where both the cation and anion influenced the hybrids' final properties. This could be evidenced as the polar group functionalized-IL (ether- and carboxy-functionalized IL) allowed the formation of multiple hydrogen bonds at the organic-inorganic interphase, inducing a fine hybrid morphology with well-dispersed silica nanodomains. This significantly increased the storage (∼50%) and tensile moduli (∼20%), extensibility (up to 300%), and glass transition temperature (>20 °C) and decreased the water vapor permeability (∼50%), which are desirable characteristics for potential food and medical packaging.
dc.description.firstpage1094
dc.description.issuenumber1
dc.description.lastpage1105
dc.description.volume5
dc.identifier.doi10.1021/acssuschemeng.6b02379
dc.identifier.issn2168-0485
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35793
dc.relation.ispartofACS Sustainable Chemistry and Engineering
dc.rightsAcesso Restrito
dc.subject.otherlanguageBionanocomposite
dc.subject.otherlanguageHigh amorphous vinyl alcohol
dc.subject.otherlanguageImidazolium ionic liquid
dc.subject.otherlanguagePackaging
dc.subject.otherlanguageSol-gel silica
dc.subject.otherlanguageWater vapor permeability
dc.titleHigh Amorphous Vinyl Alcohol-Silica Bionanocomposites: Tuning Interface Interactions with Ionic Liquids
dc.typeArtigo
local.scopus.citations17
local.scopus.eid2-s2.0-85008467932
local.scopus.subjectBio-nanocomposite
local.scopus.subjectImidazolium ionic liquids
local.scopus.subjectSol-gel silica
local.scopus.subjectVinylalcohol
local.scopus.subjectWater vapor permeability
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85008467932&origin=inward
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