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SOLVENT WELDING AND IMPRINTING CELLULOSE NANOFIBER FILMS USING IONIC LIQUIDS

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dc.creatorGUILLERMO ALBERTO REYES TORRES
dc.date2019
dc.date.accessioned2025-01-10T15:11:19Z
dc.date.available2025-01-10T15:11:19Z
dc.date.issued2019
dc.description.abstractCELLULOSE NANOFIBER FILMS (CNFF) WERE TREATED VIA A WELDING PROCESS USING IONIC LIQUIDS (ILS). ACID-BASE-CONJUGATED ILS DERIVED FROM 1,5-DIAZABICYCLO[4.3.0]NON-5-ENE [DBN] AND 1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE ([EMIM][OAC]) WERE UTILIZED. THE REMOVAL EFFICIENCY OF ILS FROM WELDED CNFF WAS ASSESSED USING LIQUID-STATE NUCLEAR MAGNETIC RESONANCE (NMR) SPECTROSCOPY AND FOURIER TRANSFORM INFRARED SPECTROSCOPY (FTIR). THE MECHANICAL AND PHYSICAL PROPERTIES OF CNFF INDICATED SURFACE PLASTICIZATION OF CNFF, WHICH IMPROVED TRANSPARENCY. UPON TREATMENT, THE AVERAGE CNFF TOUGHNESS INCREASED BY 27%, AND THE FILMS REACHED A YOUNGS MODULUS OF ?5.8 GPA. THESE FIRST ATTEMPTS FOR IL """"WELDING"""" SHOW PROMISE TO TUNE THE SURFACES OF BIOBASED FILMS, EXPANDING THE SCOPE OF PROPERTIES FOR THE PRODUCTION OF NEW BIOBASED MATERIALS IN A GREEN CHEMISTRY CONTEXT. THE RESULTS OF THIS WORK ARE HIGHLY RELEVANT TO THE FABRICATION OF CNFFS USING IONIC LIQUIDS AND RELATED SOLVENTS.
dc.formatapplication/pdf
dc.identifier.doi10.1021/acs.biomac.8b01554
dc.identifier.issn1526-4602
dc.identifier.issn1525-7797
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/10839
dc.languagespa
dc.publisherBIOMACROMOLECULES
dc.relation.uri10.1021/acs.biomac.8b01554
dc.rightsPUBLICADA
dc.titleSOLVENT WELDING AND IMPRINTING CELLULOSE NANOFIBER FILMS USING IONIC LIQUIDS
dc.title.alternativeSOLDADURA CON DISOLVENTE E IMPRESIÓN DE PELÍCULAS DE NANOFIBRAS DE CELULOSA UTILIZANDO LÍQUIDOS IÓNICOS
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionESCUELA DE INGENIERIA CIVIL QUIMICA
ubb.SedeCONCEPCIÓN
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