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Published March 1989 | public
Journal Article

Third-order susceptibilities of soluble polymers derived from the ring opening metathesis copolymerization of cyclooctatetraene and 1,5-cyclooctadiene


We wish to report some preliminary results on the nonlinear optical properties of a new class of polymers synthesized by the ring-opening metathesis polymerization of highly unsaturated monomers. Mixtures of cyclooctatetraene, 1, and 1,5-cyclooctadiene, 2, have been polymerized by using the tungsten carbene complex 3 as the catalyst (see Figure 1). The solution polymerization of monomers 1 and 2 in tetrahydrofuran leads to an essentially random coploymer. The monomers contain exclusively cis double bonds and no attempt has been made to isomerize the double bonds in the resulting polymer. The general constitution of the copolymers is also shown in Figure 1 (an all-trans geometrical configuration is shown for simplicity).

Additional Information

© 1989 American Chemical Society. Received December 1, 1988. The research described in this paper was performed in part by the Jet Propulsion Laboratory, California Institute of Technology as part of its Innovative Space Technology Center, which is supported by the Strategic Defense Initiative Organization through an agreement with the National Aeronautics and Space Administration. S.R.M. thanks the National Research Council and NASA for an NRC-Resident Research Associateship at JPL. F.L.K. thanks the National Science Foundation for a predoctoral fellowship. R.H.G. acknowledges support from the National Science Foundation.

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