Abstract
Three fluorinated derivatives of benzonorbornadiene have been shown to undergo ring opening polymerization at the unsubstituted double bond in the presence of WCl 6 ( CH 3) 4 Sn and MoCl 5 ( CH 3) 4 Sn in chlorobenzene solution at room temperature. The proportion of cis-vinylene units ( σ c) in the resultant polymers is a function of monomer structure and catalyst, and in one case σ c approached zero; however, the distribution of meso- and racemic dyads in these polymers could not be determined with presently available techniques.
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