Letter Cite This: ACS Macro Lett. 2019, 8, 161−165
pubs.acs.org/macroletters
Atom Transfer Radical Polymerization Enabled by Sonochemically Labile Cu-carbonate Species Zhenhua Wang,†,‡,§ Francesca Lorandi,‡ Marco Fantin,‡ Zongyu Wang,‡ Jiajun Yan,‡ Zhanhua Wang,† Hesheng Xia,*,† and Krzysztof Matyjaszewski*,‡ †
ACS Macro Lett. Downloaded from pubs.acs.org by EASTERN KENTUCKY UNIV on 01/25/19. For personal use only.
The State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China ‡ Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States S Supporting Information *
ABSTRACT: Atom transfer radical polymerization (ATRP) has been previously mediated by ultrasound using a low concentration of copper complex in water (sono-ATRP) or by addition of piezoelectric materials in organic solvents (mechano-ATRP). However, these procedures proceeded slowly and yielded polymers contaminated by new chains initiated by hydroxyl radicals or by residual piezoelectrics. Unexpectedly, in the presence of sodium carbonate, rapid sono-ATRP of methyl acrylate in DMSO was achieved (80% conversion in 80% in
