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Thermoresponsive viscosity of polyacrylamide block copolymers synthesised via aqueous Cu-RDRP
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Alsubaie, Fehaid, Liarou, Evelina, Nikolaou, Vasiliki, Wilson, Paul and Haddleton, David M. (2019) Thermoresponsive viscosity of polyacrylamide block copolymers synthesised via aqueous Cu-RDRP. European Polymer Journal, 114 . pp. 326-331. doi:10.1016/j.eurpolymj.2019.02.045 ISSN 0014-3057.
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Official URL: http://dx.doi.org/10.1016/j.eurpolymj.2019.02.045
Abstract
Aqueous Cu-RDRP was utilized for the rapid synthesis of poly(N-isopropyl acrylamide)-block-poly(2-hydroxyethyl acrylamide) (PNiPAmx-b-PHEAAmy) copolymers with thermo-responsive viscosity. The pre-disproportionation of Cu(I)Br in the presence of an aliphatic tertiary amine (Me6Tren) in water generated nascent Cu(0) and [Cu(II)] complexes and facilitated the rapid synthesis of a series of (block) copolymers with low dispersity values (1.08 < Đ <1.22) and control over the molecular weight (Mn,SEC ∼30,000). The control over the polymerization enabled the design of a series of block copolymers with precision over the segment ratio, which exhibit different thermo-responsive aggregation. Thermal analysis, viscometry and fluorescence measurements gave insights on the effect of composition and temperature alterations rendering the synthesized polymers potential candidates for temperature-dependent applications.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QD Chemistry | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||
Library of Congress Subject Headings (LCSH): | Block copolymers -- Synthesis, Thermoresponsive polymers | |||||||||
Journal or Publication Title: | European Polymer Journal | |||||||||
Publisher: | Pergamon | |||||||||
ISSN: | 0014-3057 | |||||||||
Official Date: | May 2019 | |||||||||
Dates: |
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Volume: | 114 | |||||||||
Page Range: | pp. 326-331 | |||||||||
DOI: | 10.1016/j.eurpolymj.2019.02.045 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 28 February 2019 | |||||||||
Date of first compliant Open Access: | 28 August 2020 | |||||||||
RIOXX Funder/Project Grant: |
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