Poly(styrene)-supported N-heterocyclic carbene coordinated iron chloride as a catalyst for delayed polyurethane polymerization.

ABSTRACT: An advanced organometallic catalyst based on N-heterocyclic carbene (NHC) coordinated FeCl₃ has been synthesized and used to control the reaction rate in polyurethane (PUR) polymerization. The imidazolium (Im)-based NHC was functionalized on the surface of the supporting material of bead-type chloromethyl polystyrene (PS) resin. The PS-Im-FeCl₃ catalyst was synthesized through the coordination reaction between Im and FeCl₃. The successful formation, functional groups, structure, and geometry of the PS-Im-FeCl₃ catalysts were confirmed by Fourier transform infrared and X-ray photoelectron spectroscopy techniques. A thin layer of Im was observed to be coated uniformly on the PS bead surface and FeCl₃ nanoparticles were observed to cover

SUBMITTER: Noh HJ 

PROVIDER: S-EPMC9089435 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature