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2009-06-17 - Article/Dans un journal avec peer-review - Anglais - 11 page(s)

Deshayes Gaëlle, Delcourt Cécile , Verbruggen I., Trouillet-Fonti L., Touraud F., Fleury E., Degée Philippe, Destarac M., Willem R., Dubois Philippe , "Novel polyesteramides-based diblock copolymers: synthesis by ring-opening copolymerization and characterization" in Macromolecular Chemistry and Physics, 210, 12, 1033-1043

  • Edition : Wiley-VCH, Weinheim (Germany)
  • Codes CREF : Chimie macromoléculaire (DI1315), Chimie quantique (DI1321), Catalyses hétérogène et homogène (DI1334), Optique (DI1250)
  • Unités de recherche UMONS : Matériaux Polymères et Composites (S816), Chimie des matériaux nouveaux (S817)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Block copolymers based on a polyesteramide sequence and a polyether block were synthesized in bulk at 250?°C by ring-opening copolymerization (ROP) of e-caprolactone (CLo) and e-caprolactam (CLa) as initiated by Jeffamine® M1000, i.e., ?-NH2 copoly[(ethylene oxide)-co-(propylene oxide)] copolymer [P(EO-co-PO)-NH2]. For an initial molar ratio of [CLa]0/[CLo]0?=?1, the copolymerization allowed for the formation of a diblock copolymer with a statistical polyesteramide sequence, as evidenced by 13C NMR. Investigation of the ROP mechanism highlighted that CLo was first polymerized, leading to the formation of a diblock copolymer P(EO-co-PO)-b-PCLo-OH, followed by CLa hydrolysis to aminocaproic acid that inserted into the ester bonds of PCLo via aminolysis and subsequent condensation reactions. The outcome is the selective formation of P(EO-co-PO)-b-P(CLa-co-CLo)-OH diblock copolymers where the composition and length of the polyesteramide sequence can be fine-tuned by the [CLa]0/[CLo]0 and ([CLa]0?+?[CLo]0)/[P(EO-co-PO)-NH2]0 initial molar ratios.

Notes :
  • (Anglais) Lecture en ligne: http://onlinelibrary.wiley.com/doi/10.1002/macp.200900065/pdf
  • (Anglais) Publié en ligne le 22 juin 2009
Identifiants :
  • DOI : 10.1002/macp.200900065