Ultrafast SET-LRP of hydrophobic acrylates in multiphase alcohol-water mixtures

Enayati, Mojtaba, Jezorek, Ryan L., Monteiro, Michael J. and Percec, Virgil (2016) Ultrafast SET-LRP of hydrophobic acrylates in multiphase alcohol-water mixtures. Polymer Chemistry, 7 21: 3608-3621. doi:10.1039/c6py00353b


Author Enayati, Mojtaba
Jezorek, Ryan L.
Monteiro, Michael J.
Percec, Virgil
Title Ultrafast SET-LRP of hydrophobic acrylates in multiphase alcohol-water mixtures
Journal name Polymer Chemistry   Check publisher's open access policy
ISSN 1759-9962
1759-9954
Publication date 2016-06-07
Year available 2016
Sub-type Article (original research)
DOI 10.1039/c6py00353b
Open Access Status Not yet assessed
Volume 7
Issue 21
Start page 3608
End page 3621
Total pages 14
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2017
Language eng
Formatted abstract
A solution of a hydrophobic nonpolar acrylate such as n-butyl acrylate (BA) in a large diversity of alcohols is immiscible with a solution containing tris(2-dimethylaminoethyl)amine (Me6-TREN) and Cu(ii)Br2 in water. Addition of NaBH4 to this biphasic mixture reduces instantaneously the Cu(ii)Br2 to red Cu(0). When a biphasic mixture containing an alcohol, Me6-TREN, methyl 2-bromopropanoate (MBP), Cu(ii)Br2 and water was combined with NaBH4 in an inexpensive test tube at 25 °C under a blanket of N2, an ultrafast single electron transfer-living radical polymerization (SET-LRP) of the hydrophobic monomer in a two- or three-phase reaction mixture took place. First order kinetics up to 100% monomer conversion in less than 20 min with narrow molecular weight distribution of the resulting polyacrylate were observed regardless of the rate of the polymerization. The rate of this SET-LRP can be mediated both by the ratio between alcohol and water and by the ratio between Cu(ii)Br2 and NaBH4. At the end of the polymerization all Cu(ii)X2 is available only in the water phase that can be isolated leading to colorless polymers that are virtually free of any copper. This new multiphase polymerization methodology provides access to the synthesis of hydrophobic nonpolar polyacrylates by SET-LRP.
Keyword Hydrophobic nonpolar acrylate
SET-LRP
Multiphase alcohol–water mixtures
Multiphase polymerization methodology
Hydrophobic nonpolar polyacrylates
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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