Utilizing Polymer Blends to Prepare Ultrathin Films with Diverse Cellulose Textures

Authors

  • Eero Kontturi,

    Corresponding author
    1. Department of Forest Products Technology, Helsinki University of Technology, P.O. Box 6300, FIN-02015 TKK, Finland
    • Department of Forest Products Technology, Helsinki University of Technology, P.O. Box 6300, FIN-02015 TKK, Finland.
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  • Laura Nyfors,

    1. Department of Forest Products Technology, Helsinki University of Technology, P.O. Box 6300, FIN-02015 TKK, Finland
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  • Janne Laine

    1. Department of Forest Products Technology, Helsinki University of Technology, P.O. Box 6300, FIN-02015 TKK, Finland
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Abstract

This paper presents an overview of the recent work on ultrathin polymer blend films containing cellulose. Three systems prepared via trimethylsilyl cellulose derivative, which is subsequently hydrolyzed to cellulose, are presented: polystyrene/cellulose, poly(methyl methacrylate)/cellulose and polystyrene-block-polyethyleneoxide/cellulose. Diverse textures emerge within the films depending on the interactions between the polymers and their interactions with the substrate as well as on different solubilities of the polymers. Furthermore, an ultrathin film containing a cellulose/xylan blend is presented. This film was deposited directly from a common solvent (dimethylacetamide/lithium chloride) and it did not exhibit distinct morphological patterns comparable to the blends with synthetic polymers.

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