Article (Scientific journals)
Synthesis and characterization of random copolyesters of epsilon-caprolactone and 2-oxepane-1,5-dione
Latere Dwan'Isa, Jean-Pierre; Lecomte, Philippe; Dubois, Philippe et al.
2003In Macromolecules, 36 (8), p. 2609-2615
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Keywords :
ring-opening polymerization; lactone
Abstract :
[en] 2-Oxepane-1,5-dione (OPD) has been synthesized by the Baeyer-Villiger oxidation of 1,4-cyclohexanedione and copolymerized with epsilon-caprolactone. This random copolymerization has been initiated by different metal derivatives, i.e., tin octanoate, dibutyltin dimethoxide, and aluminum isopropoxide. Dibutyltin dimethoxide is the preferred initiator, and the course of polymerization is controlled by the competition of the ketone of OPD and the ester of the lactones for coordination to the initiator. Semicrystalline copolymers are formed, whose the randomness has been confirmed by DSC, H-1 NMR, and C-13 NMR analysis. A single melting temperature (Tm) has been observed, which varies regularly and monotonically with the OPD content as result of a cocrystallization phenomenom. The single glass transition temperature (Tg) obeys the Fox equation.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Latere Dwan'Isa, Jean-Pierre;  Université de Liège - ULiège > Centre d'études et de rech. sur les macromolécules (CERM)
Lecomte, Philippe  ;  Université de Liège - ULiège > Centre d'études et de rech. sur les macromolécules (CERM)
Dubois, Philippe ;  Université de Mons-Hainaut - UMH > Laboratory of Polymeric and Composite Materials (SMPC)
Jérôme, Robert ;  Université de Liège - ULiège > Centre d'études et de rech. sur les macromolécules (CERM)
Language :
English
Title :
Synthesis and characterization of random copolyesters of epsilon-caprolactone and 2-oxepane-1,5-dione
Publication date :
22 April 2003
Journal title :
Macromolecules
ISSN :
0024-9297
eISSN :
1520-5835
Publisher :
Amer Chemical Soc, Washington, United States - Washington
Volume :
36
Issue :
8
Pages :
2609-2615
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Solvay sa [BE]
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