Issue 34, 2020
From the journal:

Polymer Chemistry

Aqueous copper-mediated reversible deactivation radical polymerization (RDRP) utilizing polyetheramine derived initiators†‡

Jirui Zhang,a   Evelina Liarou, ORCID logo a   James Town, ORCID logo a   Yongguang Li,a   Alan M. Wemyss ORCID logo a  and  David M. Haddleton ORCID logo *a  

* Corresponding authors

a Department of Chemistry, University of Warwick, Gibbet Hill, Coventry, UK
E-mail: d.m.haddleton@warwick.ac.uk

Abstract

Copper-mediated reversible deactivation radical polymeriation (Cu-RDRP) in aqueous media has been employed to synthesize temperature-responsive block copolymers, utilizing both hydrophobic and hydrophilic amide functional macroinitiators derived from polyetheramines (Jeffamines™). The in situ and rapid diproportionation of Cu(I)Br/Me6TREN in water is exploited for the efficient homopolymerization of N-isopropyl acrylamide (NIPAM) and dimethyl acrylamide (DMA), at near full conversions (>99%), with low dispersity (Đ < 1.18) and with a range of molar masses. The Jeffamine™-derived macroinitiators were used for both the synthesis of homopolymer and for one-pot chain extensions and block copolymerizations (i.e. Jeffamine™-PNIPAM-b-PDMA). The obtained polymers exhibit controlled thermoresponsive aggregation behaviour which varies depending on the hydrophilicity/hydrophobicity of the macroinitiators and the composition of the block copolymers. Thermal analysis and dynamic light scattering (DLS) give an insight into the effect of these macroinitiators on the thermoresponsive aggregation behaviour of the synthesized polymers.

Graphical abstract: Aqueous copper-mediated reversible deactivation radical polymerization (RDRP) utilizing polyetheramine derived initiators

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Article information

DOI
https://doi.org/10.1039/D0PY00555J
Article type
Paper
Submitted
16 Apr 2020
Accepted
05 Jul 2020
First published
03 Aug 2020
This article is Open Access
Creative Commons BY-NC license

Polym. Chem., 2020,11, 5534-5541

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Aqueous copper-mediated reversible deactivation radical polymerization (RDRP) utilizing polyetheramine derived initiators

J. Zhang, E. Liarou, J. Town, Y. Li, A. M. Wemyss and D. M. Haddleton, Polym. Chem., 2020, 11, 5534 DOI: 10.1039/D0PY00555J

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