Journal of Polymers and the Environment

, Volume 27, Issue 11, pp 2577–2587 | Cite as

Abiotic Hydrolysis and Compostability of Blends Based on Cassava Starch and Biodegradable Polymers

  • Ivan TaiateleJr.
  • Tatiane C. Dal Bosco
  • Paula C. S. Faria-Tischer
  • Ana Paula Bilck
  • Fabio Yamashita
  • Janksyn Bertozzi
  • Roger N. Michels
  • Suzana MaliEmail author
Original paper


When associated with polymer blends, starch may improve the biodegradability and compostability of other materials. The objectives of this work were to evaluate the abiotic hydrolysis and the composting process of films obtained from polymer blends between thermoplastic starch (TPS) and three other biodegradable polymers: poly[(butylene adipate)- co -(terephthalate)] (PBAT), poly(lactic acid) (PLA) and polyvinyl alcohol (PVA). PVA/TPS stood out as the most homogeneous blend and the one that showed the highest weight loss, with 46.21% of its initial weight remaining after abiotic hydrolysis tests. On the other hand, PBAT/TPS and PLA/TPS underwent more drastic and rapid degradation during composting in contrast to PVA/TPS. They became very fragmented after 21 days of composting, while the PVA/TPS was visually modified but remained unbroken until day 70. No blend sample exerted negative effects on the quality of the compost.


Poly[(butylene adipate)- co -(terephthalate)] Poly(lactic acid) Polyvinyl alcohol Hydrolysis Composting 



IC scholarship holders (UTFPR-Londrina-Brazil) and CAPES-DS.


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Authors and Affiliations

  1. 1.Department of Biochemistry and BiotechnologyCCE, State University of LondrinaLondrinaBrazil
  2. 2.Department of Environmental EngineeringFederal University of Technology – ParanáLondrinaBrazil
  3. 3.Department of Food Science and TechnologyCCA, State University of LondrinaLondrinaBrazil
  4. 4.Department of ChemistryFederal University of Technology – ParanáLondrinaBrazil
  5. 5.Department of Mechanical EngineeringFederal University of Technology – ParanáLondrinaBrazil

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