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Hydrophobic modification of starch via grafting with an oxazoline-derivative

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Abstract

The application of starch in tailored materials is limited because of the high hydrophilicity of the polysaccharide. Thus, simple and efficient paths for the hydrophobic modification of native, cationic or thermoplastic starches by means of a radical grafting process using bifunctional fatty acid oxazoline derivatives were investigated. The modified starches can be manufactured by means of an extrusion process showing high grafting yields at adjustable grafting contents from 2.5 to 30%. Resulting starch materials are distinguished by modified water absorption properties and solubility, which is a prerequisite for their application in the paper or painting industry. Moreover the structure of the oxazoline derivative supplies the opportunity for reactive blending of different polymers carrying carboxyl, amino, mercapto or epoxy groups. This is exemplarily shown for the conversion with biodegradable polyesters, which contain carboxylic acid functions. Film forming properties of the new starch-based materials were studied. Results of the examination of manufactured shouldered test bars of starches coupled with biodegradable polyesters are presented as well.

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References

  • Aburto J., Hamaili H., Mouysset-Baziard G., Senocq F., Alric I., Borredon E. (1999). Free-solvent synthesis and properties of higher fatty esters of starch. Part 2. Starch/Stärke 51 (8–9): 302–307

    Article  CAS  Google Scholar 

  • Bien F., Wiege B., Warwel S. (2001). Hydrophobic modification of starch by alkali-catalyzed addition of 1,2-epoxyalkanes. Starch/Stärke 53 (11): 555–559

    Article  CAS  Google Scholar 

  • Birnbrich P., Fischer H., Klamann J.-D., Wegemund B. (1993). 2-Oxazoline für die reaktive Extrusion. Kunststoffe 83 (11): 885–888

    CAS  Google Scholar 

  • Bloembergen S.T. and Narayan R. 1995. Biodegradable moldable products and films comprising blends of starch esters and polyesters. US 5462983.

  • Gross R.A., Kalra B. (2002). Biodegradable Polymers for the Environment. Science 297: 803–807

    Article  PubMed  CAS  Google Scholar 

  • Möller H., Fristad W., Krause H.-J., Lehmann R.H. (1993). 2-Fettalkyl-2-oxazoline – ein vielversprechendes Reaktivsystem – Synthese und Folgechemie. Fat Sci.Technol. 95: 51–57

    Google Scholar 

  • Narayan R., Bloembergen S.T. and Lathia A. 1995. Biodegradable modified starch moldable products and films and their manufacture. WO 9504083.

  • Shmuell D. and Ram L.K. 1994. Melt processable biodegradable compositions and articles made therefrom. EP 0606923.

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Acknowledgements

The studies have been carried out within the scope␣of the project HYDROSTAR, that has been supported by the 5th Frame Programme of the European Community.

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Authors and Affiliations

  1. Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., Breitscheidstr. 97, D-07407, Rudolstadt, Germany

    Birgit Kosan & Frank Meister

  2. Friedrich-Schiller-Universität Jena, Kompetenzzentum Polysaccharidforschung, Humboldtstasse 10, D-07743, Jena, Germany

    Tim Liebert & Thomas Heinze

Authors
  1. Birgit Kosan
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  2. Frank Meister
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  3. Tim Liebert
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  4. Thomas Heinze
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Correspondence to Birgit Kosan.

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Kosan, B., Meister, F., Liebert, T. et al. Hydrophobic modification of starch via grafting with an oxazoline-derivative. Cellulose 13, 105–113 (2006). https://doi.org/10.1007/s10570-005-9013-4

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  • DOI: https://doi.org/10.1007/s10570-005-9013-4

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