Controlled Polymerization in Polar Solvents to Ultrahigh Molecular Weight Polyethylene

Journal of the American Chemical Society
Philip KenyonStefan Mecking

Abstract

Novel complexes based on 2,4,8-triarylnaphthylamine [[(2,4-{3,5-(CF3)2C6H3}2-8-(3,5-R2C6H3)-C10H4)-N═C(H)-{3-(9-anthryl)-2-O-C6H3}-κ2-N,O]Ni(CH3)(pyridine)] (4-Py, R = Me; 5-Py, R = CF3) were synthesized from 8-arylnaphthylamines which can be generated via selective lithiation, borylation, and coupling in a one-pot procedure. Due to their living characteristics in ethylene polymerization and the particularly low propensity of 5-Py for β-H elimination as reflected by a high linearity even at elevated polymerization temperatures of 60 °C, ultrahigh molecular weight polyethylene (UHMWPE) is formed in polar organic solvents (THF, diethyl ether) as a reaction medium in a controlled polymerization ( Mw/ Mn = 1.2 at Mn = 1.1 × 106 g mol-1).

References

Jun 28, 2007·Journal of the American Chemical Society·Takuya KochiKyoko Nozaki
Jun 28, 2007·Journal of the American Chemical Society·Shuji LuoRichard F Jordan
Jan 1, 2009·Journal of the American Chemical Society·Damien GuironnetStefan Mecking
Sep 30, 2009·Journal of the American Chemical Society·Shingo ItoKyoko Nozaki
Oct 8, 2009·Chemical Reviews·Akifumi NakamuraKyoko Nozaki
Mar 21, 2013·Angewandte Chemie·Hannes LeichtStefan Mecking
Jul 17, 2013·Journal of the American Chemical Society·Anna OsichowStefan Mecking
Oct 5, 2013·The Journal of Organic Chemistry·Enrico T NadresOlafs Daugulis
Oct 30, 2013·Journal of the American Chemical Society·Jennifer L RhinehartBrian K Long
Aug 11, 2015·Journal of the American Chemical Society·Ryo Nakano, Kyoko Nozaki
Aug 25, 2015·Journal of the American Chemical Society·Zhenxing XiJohn A Gladysz
Nov 13, 2015·Journal of the American Chemical Society·Zhongzheng CaiLoi H Do
Nov 14, 2015·Angewandte Chemie·Zhongbao Jian, Stefan Mecking
Nov 5, 2016·Angewandte Chemie·Zhongbao JianStefan Mecking
Feb 22, 2017·Journal of the American Chemical Society·Bruce S XinFumihiko Shimizu
Sep 19, 2017·Journal of the American Chemical Society·Philip Kenyon, Stefan Mecking
Dec 21, 2017·Journal of the American Chemical Society·Laura FaliveneStefan Mecking

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Citations

Nov 20, 2018·Angewandte Chemie·Jill B WilliamsonFrank A Leibfarth
Nov 30, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Dawei XiaoLoi H Do
Nov 28, 2019·Angewandte Chemie·Manuel SchnitteStefan Mecking
Feb 11, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Yue ZhangZhongbao Jian
May 27, 2021·Angewandte Chemie·Eva SchiebelStefan Mecking
Jun 12, 2021·Chemistry : a European Journal·Xiaoqiang HuZhongbao Jian
Oct 24, 2020·Accounts of Chemical Research·Stefan Mecking, Manuel Schnitte

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