Publikation: Direct Synthesis of Telechelic Polyethylene by Selective Insertion Polymerization
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2016
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Falivene, Laura
Boffa, Giusi
Ortega Sánchez, Sheila
Grassi, Alfonso
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Angewandte Chemie International Edition. 2016, 55(46), pp. 14378-14383. ISSN 0570-0833. eISSN 1521-3773. Available under: doi: 10.1002/anie.201607754
Zusammenfassung
A single-step route to telechelic polyethylene (PE) is enabled by selective insertion polymerization. Pd(II) -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.
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JIAN, Zhongbao, Laura FALIVENE, Giusi BOFFA, Sheila ORTEGA SÁNCHEZ, Lucia CAPORASO, Alfonso GRASSI, Stefan MECKING, 2016. Direct Synthesis of Telechelic Polyethylene by Selective Insertion Polymerization. In: Angewandte Chemie International Edition. 2016, 55(46), pp. 14378-14383. ISSN 0570-0833. eISSN 1521-3773. Available under: doi: 10.1002/anie.201607754BibTex
@article{Jian2016-10-13Direc-36821,
year={2016},
doi={10.1002/anie.201607754},
title={Direct Synthesis of Telechelic Polyethylene by Selective Insertion Polymerization},
number={46},
volume={55},
issn={0570-0833},
journal={Angewandte Chemie International Edition},
pages={14378--14383},
author={Jian, Zhongbao and Falivene, Laura and Boffa, Giusi and Ortega Sánchez, Sheila and Caporaso, Lucia and Grassi, Alfonso and Mecking, Stefan}
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<dcterms:abstract xml:lang="eng">A single-step route to telechelic polyethylene (PE) is enabled by selective insertion polymerization. Pd(II) -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-η<sup>3</sup> interaction for the case of VF.</dcterms:abstract>
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