TY - JOUR
T1 - Bulk polymerization of lactides initiated by aluminium isopropoxide, 3
T2 - Thermal stability and viscoelastic properties
AU - Degée, Philippe
AU - Dubois, Philippe
AU - Jérôme, Robert
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The thermal stability of poly(L-lactide) and L/D-lactide stereocopolymers polymerized in bulk with aluminium isopropoxide as initiator was investigated by thermogravimetric analysis, and time and temperature dependence of molecular weight and polydispersity. Compared to poly(L-lactide) prepared with stannous octoate as catalyst, the thermal stability of polylactides is remarkably enhanced when the ring-opening polymerization is initiated by aluminium alkoxide. Ultimate mechanical properties and viscoelasticity of these melt-stable thermoplastics have also been studied in relation to the polyester enantiomeric composition.
AB - The thermal stability of poly(L-lactide) and L/D-lactide stereocopolymers polymerized in bulk with aluminium isopropoxide as initiator was investigated by thermogravimetric analysis, and time and temperature dependence of molecular weight and polydispersity. Compared to poly(L-lactide) prepared with stannous octoate as catalyst, the thermal stability of polylactides is remarkably enhanced when the ring-opening polymerization is initiated by aluminium alkoxide. Ultimate mechanical properties and viscoelasticity of these melt-stable thermoplastics have also been studied in relation to the polyester enantiomeric composition.
UR - http://www.scopus.com/inward/record.url?scp=0001253696&partnerID=8YFLogxK
U2 - 10.1002/macp.1997.021980624
DO - 10.1002/macp.1997.021980624
M3 - Article
AN - SCOPUS:0001253696
SN - 1022-1352
VL - 198
SP - 1985
EP - 1995
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 6
ER -