Bulk polymerization of lactides initiated by aluminium isopropoxide, 3a). Thermal stability and viscoelastic properties

[en] 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 température 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 enan-tiomeric composition.

Research Center/Unit :

Center for Education and Research on Macromolecules (CERM)

Disciplines :

Materials science & engineering
Chemistry

Author, co-author :

Degée, Philippe; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Dubois, Philippe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)

Language :

English

Title :

Bulk polymerization of lactides initiated by aluminium isopropoxide, 3a). Thermal stability and viscoelastic properties

Publication date :

June 1997

Journal title :

Macromolecular Chemistry and Physics

ISSN :

1022-1352

eISSN :

1521-3935

Publisher :

Wiley-V C H Verlag Gmbh, Weinheim, Germany

Volume :

198

Issue :

Pages :

1985-1995

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www3.interscience.wiley.com/cgi-bin/fulltext/104078348/PDFSTART

Funders :

BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
F.R.S.-FNRS - Fonds de la Recherche Scientifique

Available on ORBi :

since 20 January 2009

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