New type of highly active chromium(III) catalysts containing both organic cations and anions designed for polymerization of beta-olefin derivatives

The new type of catalysts designed for the olefin derivatives polymerization has been synthetized. The novel catalysts are chromium(III) salt type complexes composed of both organic cation and anion, i.e. [Cr(dipic)(2)][Cr(bipy)(dipic)H(2)O]∙2H(2)O and [Cr(dipic)(2)]Hdmbipy∙2.5 H(2)O. The compositions of these complexes have been confirmed by a number of instrumental methods including NMR, IR, UV-Vis, MS and elemental analysis ones. Moreover, the crystal structures of these novel catalysts were determined and reported. Furthermore, the [Cr(dipic)(2)][Cr(bipy)(dipic)H(2)O]∙2H(2)O and [Cr(dipic)(2)]Hdmbipy∙2.5H(2)O complexes have been studied towards their catalytic activity, after the activation by MMAO (modified methylaluminoxane), in the case of 2-chloro-2-propen-1-ol polymerization at 21 °C and atmospheric pressure. It has been found that novel catalysts, [Cr(dipic)(2)][Cr(bipy)(dipic)H(2)O]∙2H(2)O and [Cr(dipic)(2)]Hdmbipy∙2.5 H(2)O, exhibit a very high catalytic activity in the process of the polymerization of the beta-olefin derivatives. The products of a such catalyzed polymerization are the poly(allyl alcohol) derivatives.