Journal of Polymers and the Environment

, Volume 18, Issue 2, pp 98–103 | Cite as

Anaerobic Biodegradation of Polyvinyl Alcohol Modified by Extracellular Polysaccharides

  • Josef Hrnčiřík
  • Jiří Pšeja
  • Jan Kupec
  • Světlana Bernkopfová
Original Paper


This work focused on anaerobic biodegradation of blends composed of glycerol-plasticized polyvinyl alcohol (PVA) and biopolymer (starch, gellan, xanthan) in an aqueous environment, after inoculation with digested activated sludge from a municipal wastewater treatment plant. Glycerol degradability is comparable to degradability of used modifying agents. Modifying agents added in the 20–40 wt% range proportionally increased biodegradation degree (Dt) calculated from balance of transformed carbon in the system. Biodegradation degree of polysaccharides and glycerol attained 95% and over. For PVA it was only 6.5% (in breakdown times up to 500 h). Content of polysaccharides favorably affects biodegradation degree of polyvinyl alcohol blends, but at the expense of reduced mechanical properties of resultant products.


Biodegradation Anaerobic Polyvinyl alcohol Blends Starch Gellan Xanthan Glycerol 



This work was accomplished with financial support for research by Ministry of Youth, Education and Sports of the Czech Republic, No. MSM 7088352101.


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Josef Hrnčiřík
    • 1
  • Jiří Pšeja
    • 2
  • Jan Kupec
    • 2
  • Světlana Bernkopfová
    • 2
  1. 1.Department of Food Engineering, Faculty of TechnologyTomas Bata University in ZlínZlínCzech Republic
  2. 2.Department of Environmental Engineering, Faculty of TechnologyTomas Bata University in ZlínZlínCzech Republic

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