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Article Dans Une Revue CHEMICAL COMMUNICATIONS Année : 2017

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

Résumé

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).
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Dates et versions

hal-04638693 , version 1 (08-07-2024)

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Zhanyao Hou, Wim Dehaen, Joel Lyskawa, Patrice Woisel, Richard Hoogenboom. A supramolecular miktoarm star polymer based on porphyrin metal complexation in water. CHEMICAL COMMUNICATIONS, 2017, Chemical Communications, 4, pp.19. ⟨10.1039/C7CC03128A⟩. ⟨hal-04638693⟩
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