D.P. Cole
Efficient water-soluble drag reducing star polymers with improved mechanical stability
Cole, D.P.; Khosravi, E.; Musa, O.M.
Authors
E. Khosravi
O.M. Musa
Abstract
We describe here the first example of the synthesis of 4-arm star poly(acrylic acid) for use as a water-soluble drag reducing agent, by applying Cu(0)-mediated polymerization technique. High molecular weight 4-arm star poly(tert-butyl acrylate) (Mn = 3.0–9.0 × 105 g mol−1) was first synthesized using 4,4′-oxybis(3,3-bis(2-bromopropionate)butane as an initiator and a simple Cu(0)/TREN catalyst system. Then, 4-arm star poly(tert-butyl acrylate) were subjected to hydrolysis using trifluoroacetic acid resulting in water-soluble 4-arm star poly(acrylic acid). Drag reduction test rig analysis showed 4-arm star poly(acrylic acid) to be effective as a drag reducing agent with drag reduction of 24.3%. Moreover, 4-arm star poly(acrylic acid) exhibited superior mechanical stability when compared with a linear poly(acrylic acid) and commercially available drag reducing polymers; Praestol and poly(ethylene oxide). The linear poly(acrylic acid), Praestol, and poly(ethylene oxide) all showed a large decrease in drag reduction of 8–12% when cycled 30 times through the drag reduction test rig while, in contrast, 4-arm star poly(acrylic acid) demonstrated much higher mechanical stability.
Citation
Cole, D., Khosravi, E., & Musa, O. (2016). Efficient water-soluble drag reducing star polymers with improved mechanical stability. Journal of Polymer Science Part A: Polymer Chemistry, 54(3), 335-344. https://doi.org/10.1002/pola.27779
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 8, 2015 |
Online Publication Date | Aug 11, 2015 |
Publication Date | Feb 1, 2016 |
Deposit Date | Oct 22, 2015 |
Publicly Available Date | Aug 11, 2016 |
Journal | Journal of Polymer Science Part A: Polymer Chemistry |
Print ISSN | 0887-624X |
Electronic ISSN | 1099-0518 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 54 |
Issue | 3 |
Pages | 335-344 |
DOI | https://doi.org/10.1002/pola.27779 |
Keywords | Single electron transfer-living radical polymerization (SET-LRP), Star polymers, Water-soluble polymers, Atom transfer radical polymerization (ATRP). |
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Copyright Statement
This is the accepted version of the following article: Cole, D. P., Khosravi, E. and Musa, O. M. (2016), Efficient water-soluble drag reducing star polymers with improved mechanical stability. Journal of Polymer Science Part A: Polymer Chemistry, 54(3): 335-344, which has been published in final form at http://dx.doi.org/10.1002/pola.27779. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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