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Issue 60, 2017
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A supramolecular miktoarm star polymer based on porphyrin metal complexation in water

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Abstract

A novel supramolecular miktoarm star polymer was successfully constructed in water from a pyridine end-decorated polymer (Py-PmDEGA) and a metalloporphyrin based star polymer (ZnTPP-(PEG)4) via metal–ligand coordination. The Py-PmDEGA moiety was prepared via a combination of reversible addition–fragmentation chain transfer polymerization (RAFT) and subsequent aminolysis and Michael addition reactions to introduce the pyridine end-group. The ZnTPP(PEG)4 star-polymer was synthesized by the reaction between tetrakis(p-hydroxyphenyl)porphyrin and toluenesulfonyl-PEG, followed by insertion of a zinc ion into the porphyrin core. The formation of a well-defined supramolecular AB4-type miktoarm star polymer was unambiguously demonstrated via UV-Vis spectroscopic titration, isothermal titration calorimetry (ITC) and diffusion ordered NMR spectroscopy (DOSY).

Graphical abstract: A supramolecular miktoarm star polymer based on porphyrin metal complexation in water

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Article information


Submitted
24 Apr 2017
Accepted
06 Jul 2017
First published
06 Jul 2017

Chem. Commun., 2017,53, 8423-8426
Article type
Communication

A supramolecular miktoarm star polymer based on porphyrin metal complexation in water

Z. Hou, W. Dehaen, J. Lyskawa, P. Woisel and R. Hoogenboom, Chem. Commun., 2017, 53, 8423
DOI: 10.1039/C7CC03128A

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