SYNTHESIS, CHARACTERIZATION AND CATALYTIC ACTIVITY OF STYRENE-DIVINYLBENZENE COPOLYMER (XAD-2) BOUND PALLADIUM(II) COMPLEX

Polymer-anchored Pd(II) complex catalyst was synthesised by sequential attachment of 1,2-diaminopropane as a ligand to the chloromethylated commercially available styrene-divinylbenzene copolymer (XAD-2). The c atalyst was characterised using techniques such as FTIR, SEM, EPR, and UV-VIS reflectance spectroscopy. Other physicochemical properties, su ch as bulk density, moisture content, swelling and surface area by the BET method at low temperature by nitrogen adsorption, were also studi ed. The catalyst was tested for the rate of hydrogenation of cyclohexe ne. The influence of various factors such as temperature, concentratio n of catalyst, substrate, and quantity of solvent have been determined . The results are compared with the homogeneous analogue. The recyclin g efficiency of the catalyst was also studied.