Yb(NTf2)3/HFIP induced high isotacticity in atom transfer radical polymerization of methyl methacrylate. Issue 38 (7th September 2018)

• Record Type: Journal Article
• Authors: Schaubach, Sebastian; Wang, Xiao-Yan; Li, Jun-Fang; Sun, Xiu-Li; Wang, Sunewang R.; Tang, Yong
• Is Part Of: Polymer chemistry. Volume 9:Issue 38(2018)
• Page Start: 4711
• Page End: 4715
• Publication Date: 2018-09-07
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c8py00953h
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : Highly efficient Lewis acid Yb(NTf2 )3 (1–8 mol%) for a high triad isotacticity (up to 69%) in bisoxazoline/copper mediated ATRP of MMA in HFIP is described. 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.