Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können am Montag, 6.2. und Dienstag, 7.2. keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted on Monday, Feb. 6 and Tuesday, Feb. 7.)
Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1osjxkyp6of9l1 |
Author: | Schnitte, Manuel; Staiger, Anne; Casper, Larissa A.; Mecking, Stefan |
Year of publication: | 2019 |
Published in: | Nature Communications ; 10 (2019), 1. - 2592. - eISSN 2041-1723 |
Pubmed ID: | 31197178 |
DOI (citable link): | https://dx.doi.org/10.1038/s41467-019-10692-1 |
Summary: |
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 < 0.05) together with the immediate deposition of the growing chain on the growing nanocrystal results in a distinct evolution of the particle morphology over time. These uniform nanocrystals are obtained as concentrated aqueous dispersions of > 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.
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Subject (DDC): | 540 Chemistry |
Link to License: | Attribution 4.0 International |
Bibliography of Konstanz: | Yes |
Refereed: | Yes |
SCHNITTE, Manuel, Anne STAIGER, Larissa A. CASPER, Stefan MECKING, 2019. Uniform shape monodisperse single chain nanocrystals by living aqueous catalytic polymerization. In: Nature Communications. 10(1), 2592. eISSN 2041-1723. Available under: doi: 10.1038/s41467-019-10692-1
@article{Schnitte2019-06-13Unifo-46021, title={Uniform shape monodisperse single chain nanocrystals by living aqueous catalytic polymerization}, year={2019}, doi={10.1038/s41467-019-10692-1}, number={1}, volume={10}, journal={Nature Communications}, author={Schnitte, Manuel and Staiger, Anne and Casper, Larissa A. and Mecking, Stefan}, note={Article Number: 2592} }
Schnitte_2-1osjxkyp6of9l1.pdf | 299 |