DataVXACS Applied Materials & InterfacesPaper
journal article·2016-02-10

Direct Interfacial Modification of Nanocellulose Films for Thermoresponsive Membrane Templates

Minna Hakalahti, Andreas Mautner, Leena-Sisko Johansson, Tuomas Hänninen, Harri Setälä, Eero Kontturi, Alexander Bismarck, Tekla Tammelin

ACS Applied Materials & Interfaces· Volume 8· Issue 5
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Source abstract

Abstract

This letter proposes a strategy to construct tunable films combining the physical characteristics of cellulose nanofibrils and smart polymers for membrane applications. A functional membrane template was obtained by first fabricating a water stable film from cellulose nanofibrils and subsequently surface grafting it with a thermoresponsive polymer, poly(N-isopropylacrylamide). The behavior of the membrane template was dependent on temperature. The increment in slope of relative water permeance around the lower critical solution temperature of poly(N-isopropylacrylamide) increased from 18 to 100% upon polymer attachment. Although the membrane template essentially consisted of wood-based materials, the benefits of smart synthetic polymers were achieved.
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Research context

PolymersNanomaterials

OpenAlex topics: Advanced Cellulose Research Studies · Electrospun Nanofibers in Biomedical Applications · Nanocomposite Films for Food Packaging

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

High Performance Fibre Products, VTT Technical Research Center of Finland Ltd, FI-02044 VTT, Espoo, Finland

Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna, Währingerstrasse 42, A-1090 Vienna, Austria

Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom

Department of Forest Products Technology, School of Chemical Technology, Aalto University, 02150 Espoo, Finland

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