Biodegradable materials by reactive extrusion: from catalyzed polymerization to functionalization and blend compatibilization

Jean Marie Raquez, Philippe Degée, Yogaraj Nabar, Ramani Narayan, Philippe Dubois

Research output: Contribution to journalShort surveypeer-review


This contribution aims at reviewing how reactive extrusion (REx) technique can participate in the design and development of biodegradable polymeric materials more particularly based on aliphatic polyesters issued from both renewable (agrochemical) and fossil (petrochemical) resources. On one side, REx will be approached for producing in a continuous way biodegradable aliphatic polyesters by ring-opening polymerization of lactones. Tin and aluminum-based catalysts will be considered for quantitatively converting the cyclic monomer in high molecular weight polyester chains within residence time of a few minutes only. On the other hand, such polyesters will undergo various chemical modifications again performed by REx. Self-branching reactions will be investigated in order to compensate the characteristic molecular weight reduction of the polyester chains as triggered by hydrolysis and/or transesterification side-reactions. Controlled functionalization reactions by maleic anhydride treatment will be studied as well. Finally biodegradable composite materials will be produced by REx and will rely upon the interface compatibilization between the polyester matrix and natural fillers such as starch granules or talc microparticles. To cite this article: J.-M. Raquez, et al., C. R. Chimie 9 (2006).

Original languageEnglish
Pages (from-to)1370-1379
Number of pages10
JournalComptes Rendus Chimie
Issue number11-12
Publication statusPublished - 1 Nov 2006
Externally publishedYes


  • Aliphatic polyesters
  • Biodegradables
  • Composites
  • Coordination catalysis
  • Polymers
  • Reactive extrusion


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