Yb(NTf2)3/HFIP induced high isotacticity in atom transfer radical polymerization of methyl methacrylate

Sebastian Schaubach; Xiao-Yan Wang; Jun-Fang Li; Xiu-Li Sun; Sunewang R. Wang; Yong Tang

doi:10.1039/C8PY00953H

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Yb(NTf₂)₃/HFIP induced high isotacticity in atom transfer radical polymerization of methyl methacrylate†

Sebastian Schaubach,^a Xiao-Yan Wang,

*^a Jun-Fang Li,^a Xiu-Li Sun,^a Sunewang R. Wang^a and Yong Tang

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
E-mail: tangy@sioc.ac.cn, wangxiaoyan@sioc.ac.cn

Abstract

High triad isotacticity (mm = 69%) in copper/BOX mediated ATRP of MMA is achieved. The use of strong Lewis acid Yb(NTf₂)₃ (1.0–8.0 mol%) and HFIP as the solvent is the key for this isotactic stereocontrol. A dilute concentration and a relatively low temperature are beneficial for further improving the isotacticity.

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Article information

DOI: https://doi.org/10.1039/C8PY00953H
Article type: Communication
Submitted: 27 Jun 2018
Accepted: 31 Aug 2018
First published: 31 Aug 2018

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Polym. Chem., 2018,9, 4711-4715

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Yb(NTf₂)₃/HFIP induced high isotacticity in atom transfer radical polymerization of methyl methacrylate

S. Schaubach, X. Wang, J. Li, X. Sun, S. R. Wang and Y. Tang, Polym. Chem., 2018, 9, 4711 DOI: 10.1039/C8PY00953H

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Polymer Chemistry