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Effect of Chemical Functionality on the Mechanical and Barrier Performance of Nanocellulose Films
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Fibre Technology.ORCID iD: 0000-0002-5286-333X
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0002-7410-0333
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0001-8622-0386
2018 (English)In: ACS APPLIED NANO MATERIALS, ISSN 2574-0970, Vol. 1, no 4, p. 1959-1967Article in journal (Refereed) Published
Abstract [en]

In the present work, we have partially modified fibrils chemically to eate a shell of derivatized cellulose that surrounds the crystalline re of native cellulose. Through the different modifications, we aimed creating a toolbox to enable the properties of CNF materials and terials containing CNFs to be tuned to meet specific material demands. total, nine different chemical modifications using different ueous-based procedures were used as chemical pretreatments before CNF oduction through homogenization. Eight of these modifications included riodate oxidation with an average of 27% of the anhydroglucose units the cellulose chain being cleaved into dialdehydes. The presence of dehydes then facilitated a conversion to other functional groups.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2018. Vol. 1, no 4, p. 1959-1967
Keywords [en]
borohydride reduction, chemical modification, chlorite oxidation, ductility, nanocellulose, periodate oxidation, reductive amination, TEMPO oxidation
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-248115DOI: 10.1021/acsanm.8b00452ISI: 000461400500061OAI: oai:DiVA.org:kth-248115DiVA, id: diva2:1307322
Note

QC 20190426

Available from: 2019-04-26 Created: 2019-04-26 Last updated: 2019-05-20Bibliographically approved

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López Durán, VeronicaHellwig, JohannesLarsson, Per A.Wågberg, Lars

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