A Straightforward Synthesis of Well-Defined Difluorophosphonylated Terminated Poly(epsilon-caprolactone) for Grafting onto Iron Oxide Magnetic Nanoparticles - Le Mans Université Accéder directement au contenu
Article Dans Une Revue Journal of Polymer Science Part A: Polymer Chemistry Année : 2016

A Straightforward Synthesis of Well-Defined Difluorophosphonylated Terminated Poly(epsilon-caprolactone) for Grafting onto Iron Oxide Magnetic Nanoparticles

Résumé

Novel α-difluoromethylenephosphonate, ω-hydroxyl-terminated poly(ε-caprolactone)s (pCF2-PCL-OH) were successfully prepared for the first time by ring-opening polymerization of ε-caprolactone in the presence of diisopropyl (1,1-difluoro-5-hydroxypentyl)phosphonate (pCF2OH) as the initiator and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as the catalyst. The so-obtained pCF2-PCL-OHs were thoroughly characterized by 1H NMR, 13C NMR, 31P NMR spectroscopies, SEC, and MALDI-TOF mass spectrometry. Dealkylation of the phosphonate ester-functionalized polymers was performed using trimethylsilyl bromide to afford the corresponding difluorophosphonic acid-terminated PCL analogues. They were used for coating magnetite nanoparticles to afford composite iron oxide nanoparticles with a mean diameter <20 nm as measured by TEM.

Dates et versions

hal-01398505 , version 1 (17-11-2016)

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Citer

The Hien Ho, Sagrario Pascual, Sébastien Livi, Emmanuelle Mebold, Laurent Fontaine, et al.. A Straightforward Synthesis of Well-Defined Difluorophosphonylated Terminated Poly(epsilon-caprolactone) for Grafting onto Iron Oxide Magnetic Nanoparticles. Journal of Polymer Science Part A: Polymer Chemistry, 2016, 54, pp.2453-2458. ⟨10.1002/pola.28147⟩. ⟨hal-01398505⟩
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