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Issue 14, 2018
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Macromonomers, telechelics and more complex architectures of PMA by a combination of biphasic SET-LRP and biphasic esterification

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Abstract

The high bromine chain end functionality of polyacrylates synthesized by single electron transfer living radical polymerization (SET-LRP) mediated by TREN in a biphasic acetone–water mixture containing Cu(II)Br2 can be exploited to introduce specific functional groups to the chain-ends of these polymers. Here, the α-bromoester end groups of poly(methyl acrylate) (PMA) synthesized in this biphasic SET-LRP system using non-activated Cu(0) wire as catalyst were reacted also under heterogeneous biphasic conditions with potassium acrylate to yield PMA macromonomers and telechelics with α- and α,ω-acrylate chain ends. The reagents used in both steps are air insensitive and inexpensive. 500 MHz 1H NMR, GPC and MALDI-TOF analyses in combination with the thio-bromo “click” reaction were used to confirm the high efficiency of this two-step protocol. The reactive nature of these macromonomers by the preparation of a PMA-g-PMA more complex architecture was also demonstrated.

Graphical abstract: Macromonomers, telechelics and more complex architectures of PMA by a combination of biphasic SET-LRP and biphasic esterification

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Publication details

The article was received on 26 Jan 2018, accepted on 22 Feb 2018 and first published on 22 Feb 2018


Article type: Paper
DOI: 10.1039/C8PY00150B
Citation: Polym. Chem., 2018,9, 1885-1899
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    Macromonomers, telechelics and more complex architectures of PMA by a combination of biphasic SET-LRP and biphasic esterification

    A. Moreno, R. L. Jezorek, T. Liu, M. Galià, G. Lligadas and V. Percec, Polym. Chem., 2018, 9, 1885
    DOI: 10.1039/C8PY00150B

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