TY - JOUR
T1 - Biodegradable materials by reactive extrusion
T2 - from catalyzed polymerization to functionalization and blend compatibilization
AU - Raquez, Jean Marie
AU - Degée, Philippe
AU - Nabar, Yogaraj
AU - Narayan, Ramani
AU - Dubois, Philippe
PY - 2006/11/1
Y1 - 2006/11/1
N2 - 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).
AB - 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).
KW - Aliphatic polyesters
KW - Biodegradables
KW - Composites
KW - Coordination catalysis
KW - Polymers
KW - Reactive extrusion
UR - http://www.scopus.com/inward/record.url?scp=33845192010&partnerID=8YFLogxK
U2 - 10.1016/j.crci.2006.09.004
DO - 10.1016/j.crci.2006.09.004
M3 - Short survey
AN - SCOPUS:33845192010
SN - 1631-0748
VL - 9
SP - 1370
EP - 1379
JO - Comptes Rendus Chimie
JF - Comptes Rendus Chimie
IS - 11-12
ER -