ring opening metathesis polymerization; ring opening polymerization; lactone; graft polymer
Abstract :
[en] Poly(epsilon-caprolactone) (PCL) macromonomers capped by a polymerizable norbornene end-group have been synthesized and (co)polymerized by ring-opening metathesis with formation of graft copolymers and polymacromonomers. -Norbornenyl PCL macromonomers have been synthesized by ring opening polymerization (ROP) of epsilon-caprolactone (CL) initiated by 2-diethylaluminoxymethyl-5-norbornene. Copolymerization of these PCL macromonomers with norbornene and polymerizable derivatives has been catalyzed by the [RuCl2(p-cymene)]2 PCy3/(trimethylsilyl)diazomethane complex yielding a series of poly(norbornene)-graft-poly(epsilon-caprolactone) copolymers. These new graft copolymers have been characterized by a set of analytical methods, i.e., SEC, 1H-NMR, FTIR, DSC, and TGA. Furthermore, PCL macromonomers have been polymerized into high molecular weight comb chains of narrow molecular weight distribution (Mw/Mn = 1.10) within high yields (90%).
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Mecerreyes, David; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Dahan, Dahan; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Lecomte, Philippe ; Université de Liège - ULiège > Centre d'études et de rech. sur les macromolécules (CERM)
Dubois, Philippe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Demonceau, Albert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Noels, Alfred F; 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 :
Ring-opening metathesis polymerization of new alpha-norbornenyl poly(epsilon-caprolactone) macromonomers
Publication date :
15 July 1999
Journal title :
Journal of Polymer Science. Part A, Polymer Chemistry
ISSN :
0887-624X
eISSN :
1099-0518
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
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