Preparation of a Magnetic-responsive Polycation with a Tetrachloroferrate Anion

Abstract

Poly [3-(methacrylamido)propyltrimethylammonium chloride] (PMAPTAC) with a well-controlled structure was reacted with FeCl 3 to exchange the counter anion from chloride (Cl ¹ ) to tetrachloroferrate (FeCl 4 ¹ ) to prepare a magnetic-responsive polymer (PMAPTAFe). PMAPTAFe powder was attracted to a neodymium magnet. A cast film of PMAPTAFe, which can be prepared from the aqueous solution, also showed magneticresponsive behavior.

Influence of metal-coordinating comonomers on the coordination structure and binding in magnetic poly(ionic liquid)s

“…1B). 90 Precipitants from the partially insoluble iron and mixed series samples did visually respond to the magnet in water (ESI † Video V10), which has been observed for other MPIL particles in nonsolvents 40,91,92 or MPILs complexed to insoluble particles. 15 In similar small molecule MIL and Mag-surf systems, this magnetic response in an aqueous environment is predominately attributed to confining the paramagnetic ions into a hydrophobic domain (e.g.…”