Direct Synthesis of Telechelic Polyethylene by Selective Insertion Polymerization
Sánchez, Sheila Ortega
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AbstractA single-step route to telechelic polyethylene (PE) is enabled by selective insertion polymerization. PdII-catalyzed copolymerization of ethylene and 2-vinylfuran (VF) generates α,ω-di-furan telechelic polyethylene. Orthogonally reactive exclusively in-chain anhydride groups are formed by terpolymerization with carbic anhydride. Combined experimental and theoretical DFT studies reveal the key for this direct approach to telechelics to be a match of the comonomers’ different electronics and bulk. Identified essential features of the comonomer are that it is an electron-rich olefin that forms an insertion product stabilized by an additional interaction, namely a π–η3 interaction for the case of VF.
CitationJian Z, Falivene L, Boffa G, Sánchez SO, Caporaso L, et al. (2016) Direct Synthesis of Telechelic Polyethylene by Selective Insertion Polymerization. Angewandte Chemie International Edition 55: 14378–14383. Available: http://dx.doi.org/10.1002/anie.201607754.
SponsorsZ.J.is grateful to the Alexander von Humboldt Foundation for a postdoctoral research fellowship and to the University of Konstanz for support within the EU FP7 Marie Curie Zukunftskolleg Incoming Fellowship Programme. Inigo Gçttker-Schnetmann is gratefully acknowledged for helpful discussions.The authors also thank Lars Bolk for GPC and DSC experiments.