| 摘要 |
A method is provided for synthesizing a polymer in a controlled fashion using a ring-opening metathesis polymerization (ROMP) reaction, wherein polymerization is carried out using a catalytically effective amount of an olefin metathesis catalyst and a bridged bicyclic or polycyclic olefin monomer that contains at least two heteroatoms directly or indirectly linked to each other. Preferred catalysts are Group 8 transition metal complexes, particularly complexes of Ru and Os. Such complexes include the ruthenium bisphosphine complex (PCy<SUB>3</SUB>)<SUB>2</SUB>(Cl)<SUB>2</SUB>Ru-CHPh (1) and the ruthenium carbene complex (IMesH<SUB>2</SUB>)(PCy<SUB>3</SUB>)(Cl)<SUB>2</SUB>Ru-CHPh (2). The invention also provides novel regioregular polymers synthesized using the aforementioned methodology, wherein the polymers may be saturated, unsaturated, protected, and/or telechelic. An exemplary polymer is poly((vinyl alcohol)<SUB>2</SUB>-alt-methylene)(MVOH).
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