omega-chloro-alpha-olefins as co- and termonomers for the synthesis of functional polyolefins

This paper deals with the use of omega-chloro-alpha-olefins as monomers for the synthesis of chloro-functional homo-, co- and terpolyolefins in the presence of (IVb) metallocene/MAO catalytic systems. Two omega-chloro-alpha-olefins, 11-chloroundec-1-ene and 5-chloropent-1-ene, were tested. It was found that only the functional olefin containing the longer aliphatic spacer between the alkene function and the halide polymerizes readily in the presence of the rac-Et(Ind)(2)ZrCl2/MAO catalyst. The drastic influence of the reaction solvent on the chloro-olefin reactivity and (co)polymerization behavior is examined and discussed. Finally, the terpolymerization of 11-chloroundec-1-ene with ethylene and propene is investigated. In a second part, the quantitative preparation, by derivatization of 11-chloroundec-1-ene units, of functional polyolefins bearing benzoate, hydroxy or azido functions as side groups is described. The corresponding functional polymers are characterized by IR and H-1 NMR spectroscopy.