Jump to main content
Jump to site search

Issue 24, 2015
Previous Article Next Article

Pd-complex driven formation of single-chain nanoparticles

Author affiliations

Abstract

We report the facile synthesis of well-defined palladium(II) cross-linked single-chain nanoparticles (Pd-SCNPs) using the ‘repeating unit approach’. The linear precursor polymer (Mn ≈ 10 200 g mol−1, Đ ≈ 1.17) was synthesized via nitroxide mediated statistical copolymerization of styrene and 4-(chloromethyl)styrene (CMS) followed by a post-polymerization modification of the resulting copolymer to covalently attach the triarylphosphine ligand moieties. The ligand content along the lateral polymer chain was 12%. Intramolecular crosslinking was performed in diluted solution with a suitable precursor complex (Pd[1,5-cyclooctadiene]Cl2) to afford the well-defined Pd-SCNPs, which feature a hydrodynamic diameter of Dh = 5.4 nm. The palladium(II) containing single-chain nanoparticles were characterized in-depth using 1H NMR spectroscopy, 31P{1H} NMR spectroscopy, dynamic light scattering (DLS), size exclusion chromatography (SEC), 1H spin–spin relaxation time (T2) analysis, X-ray photoelectron spectroscopy (XPS), and log-normal distribution (LND) simulations. Finally, the applicability of the Pd-SCNPs as catalyst in the Sonogashira coupling was exemplified.

Graphical abstract: Pd-complex driven formation of single-chain nanoparticles

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Mar 2015, accepted on 22 Apr 2015 and first published on 23 Apr 2015


Article type: Paper
DOI: 10.1039/C5PY00389J
Citation: Polym. Chem., 2015,6, 4358-4365
  • Open access: Creative Commons BY license
  •   Request permissions

    Pd-complex driven formation of single-chain nanoparticles

    J. Willenbacher, O. Altintas, V. Trouillet, N. Knöfel, M. J. Monteiro, P. W. Roesky and C. Barner-Kowollik, Polym. Chem., 2015, 6, 4358
    DOI: 10.1039/C5PY00389J

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements