Structural distinction due to deposition method in ultrathin films of cellulose nanofibres

Benjamin Wilson, Kirsi Yliniemi, Marie Gestranius, Minna Hakalahti, Matti Putkonen, Mari Lundström, Maarit Karppinen, Tekla Tammelin, Eero Kontturi

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

This research explores fundamental, structural differences of ultrathin films, prepared with three distinct deposition methods using 2,2,6,6-tetramethyl-piperidin-1-oxyl radical oxidized cellulose nanofibres (TEMPO-CNFs) derived from never dried bleached birch pulp. There is standard characterization by atomic force microscopy and ellipsometry and important structural data is gained by exposing the films to water vapor and monitoring the vapor uptake with quartz crystal microbalance (QCM). Significant distinctions were found from QCM data that could be linked to the structure of the films, originating from the three deposition methods: adsorption, spin coating and electrophoretic deposition. Moreover, the results shown here have potential implications for various types of films that comprise of amphiphilic nanomaterials that have a distinct response to moisture or aqueous based solutions.
Original languageEnglish
Pages (from-to)1715-1724
Number of pages10
JournalCellulose
Volume25
Issue number3
Early online date18 Jan 2018
DOIs
Publication statusPublished - 1 Mar 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • TEMPO-oxidized nanofibrillated cellulose
  • Ultrathin films
  • Water uptake
  • Electrophoretic deposition
  • QCM-D
  • AFM
  • Spin coating
  • ELLIPSOMETRY
  • Humidity response

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