Jump to main content
Jump to site search

Issue 23, 2013
Previous Article Next Article

Ambient temperature rapid SARA ATRP of acrylates and methacrylates in alcohol–water solutions mediated by a mixed sulfite/Cu(ii)Br2 catalytic system

Author affiliations

Abstract

The new generation of catalytic systems for Controlled/“Living” Radical Polymerization (CLRP) of vinyl monomers should be non-toxic, inexpensive and provide fast polymerizations in environmentally friendly media. Herein, we report the successful ambient temperature ATRP of several vinyl monomers (MA, n-BA, MMA and DMAEMA) catalyzed by inorganic sulfites (Na2S2O4 and Na2S2O5) and small amounts of a Cu(II)Br2/Me6TREN system in alcoholwater mixtures. The controlled character of ATRP of acrylates and methacrylates was confirmed by the linear increase of molecular weights with monomer conversion, narrow molecular weight distributions (Mw/Mn ∼ 1.05) and by reinitiation experiments (copolymerization and chain extension). 1H NMR and MALDI-TOF analyses confirmed the molecular structure and chain-end functionality of the obtained polymers. ATRP of MA using this novel catalytic system in alcoholwater mixtures with multifunctional Br-based initiators provides 4 and 6 arm star polyacrylates in a controlled manner without any observable gel formation. The data presented open up the possibility of using fast ATRP catalyzed by inorganic sulfites (approved by FDA as food and beverage additives) in solvents that are inexpensive, eco-friendly and widely used in chemical industrial processes.

Graphical abstract: Ambient temperature rapid SARA ATRP of acrylates and methacrylates in alcohol–water solutions mediated by a mixed sulfite/Cu(ii)Br2 catalytic system

Back to tab navigation

Supplementary files

Article information


Submitted
13 Jun 2013
Accepted
30 Jun 2013
First published
01 Jul 2013

Polym. Chem., 2013,4, 5629-5636
Article type
Paper

Ambient temperature rapid SARA ATRP of acrylates and methacrylates in alcohol–water solutions mediated by a mixed sulfite/Cu(II)Br2 catalytic system

C. M. R. Abreu, A. C. Serra, A. V. Popov, K. Matyjaszewski, T. Guliashvili and J. F. J. Coelho, Polym. Chem., 2013, 4, 5629
DOI: 10.1039/C3PY00772C

Social activity

Search articles by author

Spotlight

Advertisements