Immobilization Of High Ly Effective Palladium Catalyst Onto Poly( 4 - Vinylpyridine)

Abstract

A commonly known weakness of homogeneous catalysts is the difficulty to recover the active catalyst from the product. Due to the disadvantage, the designing of supported catalyst has been approached to overcome the separation difficulty of the palladium - based homogeneous catalyst. New polymer supported N 2 O 2 metal complex was successfully immobilized by mixing of poly(4 - vinylpyridine) with palladium(II) complex in the presence of ethyl acetate as solvent. Then, the reaction was stirred for 72 hours at room temperature to form corresponding P 4 VP - Pd catalyst. The pro perties of immobilized catalyst were characterized by various techniques such as f ourier transform infrared (FTIR), thermogravimetric (TGA), X - ray d iffraction (XRD), scanning electron microscopy/energy dispersive X - ray (SEM/EDX) and inductively coupled pla sma - optical emission (ICP - OES) spectroscopy.