Noncovalent Surface Modification of Cellulose Nanopapers by Adsorption of Polymers from Aprotic Solvents

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Title: Noncovalent Surface Modification of Cellulose Nanopapers by Adsorption of Polymers from Aprotic Solvents
Authors: Kontturi, KS
Biegaj, K
Mautner, A
Woodward, RT
Wilson, BP
Johansson, L-S
Lee, K-Y
Heng, JYY
Bismarck, A
Kontturi, E
Item Type: Journal Article
Abstract: Basic adsorption of hydrophobic polymers from aprotic solvents was introduced as a platform technology to modify exclusively the surfaces of cellulose nanopapers. Dynamic vapor sorption demonstrated that the water vapor uptake ability of the nanopapers remained unperturbed, despite strong repellency to liquid water caused by the adsorbed hydrophobic polymer on the surface. This was enabled by the fact that the aprotic solvents used for adsorption did not swell the nanopaper unlike water that is generally applied as the adsorption medium in such systems. As case examples, the adsorptions of polystyrene (PS) and poly(trifluoroethylene) (PF3E) were followed by X-ray photoelectron spectroscopy and water contact angle measurements, backed up with morphological analysis by atomic force microscopy. The resulting nanopapers are useful in applications like moisture buffers where repellence to liquid water and ability for moisture sorption are desired qualities.
Issue Date: 18-May-2017
Date of Acceptance: 18-May-2017
ISSN: 0743-7463
Publisher: American Chemical Society
Start Page: 5707
End Page: 5712
Journal / Book Title: LANGMUIR
Volume: 33
Issue: 23
Copyright Statement: © 2017 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, after peer review and technical editing by the publisher. To access the final edited and published work see
Sponsor/Funder: Imperial College Trust
Funder's Grant Number: N/A
Keywords: Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry, Physical
Materials Science, Multidisciplinary
Materials Science
MD Multidisciplinary
Chemical Physics
Publication Status: Published
Appears in Collections:Faculty of Engineering
Chemical Engineering
Faculty of Natural Sciences

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