298 Precise Synthetic Control Over the Average Density of Threaded Macrocycles within Polypseudorotaxanes

Thursday, November 5, 2009: 1:20 PM
Ballroom C+D (Camino Real Hotel)
Michael F. Mayer , Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX
Songsu Kang , Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX
Ruiyang Jiang , Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX
This presentation will overview work within our group on the first random entropy-driven ring-opening olefin metathesis copolymerization of an olefin-containing macrocycle with an olefin-containing [2]-catenane. Results indicate that main-chain pseudorotaxane copolymers were obtained. Furthermore, simple stoichiometric adjustment of the monomer/comonomer feed ratio thus controlled the specific average linear-number-density of macrocycles that were threaded upon the polymer chain, from 0 to 100% saturation.