Design of Electrophoretic and Biocompatible Poly(2-oxazoline)s
Initiated by Perfluoroalkanesulfoneimides and Electrophoretic Deposition
with Bioactive Glass
posted on 2015-04-13, 00:00authored byTerunari Hayashi, Akinori Takasu
N-Methyl bis[(nonafluorobutane)sulfonyl]imide
(Nf2NMe) was synthesized to serve as an initiator for polymerization
of 2-oxazolines and the polymerization activity and control of molecular
weight were compared with conventional methyl triflate (TfOMe). Ring-opening
polymerization of the vinyl-containing 2-oxazoline, 2-(3-butenyl)-2-oxazoline,
and a subsequent thiol–ene click reaction and oxidation resulted
in the successful synthesis of electrophoretic poly(2-oxazoline)s
containing pendent sulfone. It was possible to coat the polymeric
sulfones obtained via oxone oxidation (conversion, >99%) on a stainless-steel
anode selectively. Furthermore, hybridization of the poly(2-oxazoline)s
with bioactive glass (Bioglass45S5) by electrophoretic deposition
(EPD) was investigated, and the biocompatibility of the hybrid was
also evaluated.