POLYMER-SUPPORTED TITANATES AS CATALYSTS FOR TRANSESTERIFICATION REACTIONS

Polymer-supported titanates were prepared by covalent bonding of a tri alkoxychlorotitane to a preformed macroporous poly(4-hydroxystyrene) r esin. The reactivity and stability to recycling of the catalyst obtain ed were demonstrated in the catalysis of the transesterifications of m ethyl methacrylate with 2-ethylhexanol and ethyl butyrate with 1-dodec anol. A low leaching of titanium was observed during four successive u ses of the resin as a transesterification catalyst. (C) 1998 Elsevier Science Ltd. All rights reserved.