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Rapid Development of Wet Adhesion between Carboxymethylcellulose Modified Cellulose Surfaces Laminated with Polyvinylamine Adhesive
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. McMaster University, Canada.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0001-8622-0386
2016 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 36, 24161-24167 p.Article in journal (Refereed) Published
Abstract [en]

The surface of regenerated cellulose membranes was modified by irreversible adsorption-of carboxymethylcellulose (CMC). Pairs of wet CMC-modified membranes were laminated with polyvinylamine (PVAm) at room, temperature, and the delamination force for wet membranes was measured for both dried and never-dried laminates. The wet adhesion was, studied as a function of PVAm molecular weight, amine :content,: and deposition pH of the polyelectrolyte. Surprisingly the PVAm CMC system gave substantial wet adhesion that exceeded that of TEMPO-oxidized membranes with PVAm for both dried and never-dried laminates. The greatest wet adhesion was achieved for fully hydrolyzed high molecular weight PVAm. Bulk carboxymethylation of cellulose membranes gave inferior wet adhesion combined with PVAm as compared to CMC adsorption which indicates,that a CMC layer of the order of 10 nm Was necessary. There are no obvious covalent cross linking reactions between CMC and PVAm at room temperature, and on the basis of our results, we are instead attributing the wet adhesion to complex formation between the PVAm and the irreversibly adsorbed CMC at the cellulose surface. We propose that interdigitation of PVAm chains into the CMC layer is responsible for the wet adhesion values.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016. Vol. 8, no 36, 24161-24167 p.
Keyword [en]
wet adhesion, wet strength, cellulose, polyvinylamine, carboxymethyl cellulose, polyelectrolyte
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-193995DOI: 10.1021/acsami.6b05673ISI: 000383412000080PubMedID: 27552256Scopus ID: 2-s2.0-84987861907OAI: oai:DiVA.org:kth-193995DiVA: diva2:1038592
Note

QC 20161019

Available from: 2016-10-19 Created: 2016-10-14 Last updated: 2016-10-19Bibliographically approved

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