Uniform shape monodisperse single chain nanocrystals by living aqueous catalytic polymerization

Manuel Schnitte, Anne Staiger, Larissa A. Casper and Stefan Mecking ()
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Manuel Schnitte: University of Konstanz
Anne Staiger: University of Konstanz
Larissa A. Casper: University of Konstanz
Stefan Mecking: University of Konstanz

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract The preparation of polymer nanoparticles with a uniform size and shape, beyond spheres, is an unresolved problem. Here we report a living aqueous catalytic polymerization, resulting in particles grown by a single active site and composed of a single ultra high molecular weight polyethylene (UHMWPE) chain. The control on a molecular level (Mw/Mn = 1.1–1.2) and at the same time on a particle level (PDI 10 wt-% (N ≈ 1019 particles L−1) polymer content. Key to this robust procedure to single chain nanoparticles are long-lived water-stable Ni(II) catalysts that do not undergo any chain transfer. These findings are a relevant step towards polymer materials based on nanoparticle assembly.

Date: 2019
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DOI: 10.1038/s41467-019-10692-1

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