Issue 60, 2017

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

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

Supplementary files

Article information

Article type
Communication
Submitted
24 Apr 2017
Accepted
06 Jul 2017
First published
06 Jul 2017

Chem. Commun., 2017,53, 8423-8426

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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