@article{RuizPerez2017-05-22Aniso-39108,
  year={2017},
  doi={10.1002/anie.201701000},
  title={Anisotropic Polymer Nanoparticles with Tunable Emission Wavelengths by Intersegmental Chain Packing},
  number={22},
  volume={56},
  issn={0570-0833},
  journal={Angewandte Chemie International Edition},
  pages={6147--6151},
  author={Ruiz Perez, Julian Dominik and Mecking, Stefan}
}

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    <dc:contributor>Ruiz Perez, Julian Dominik</dc:contributor>
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    <dcterms:issued>2017-05-22</dcterms:issued>
    <dcterms:title>Anisotropic Polymer Nanoparticles with Tunable Emission Wavelengths by Intersegmental Chain Packing</dcterms:title>
    <dc:creator>Ruiz Perez, Julian Dominik</dc:creator>
    <dc:contributor>Mecking, Stefan</dc:contributor>
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    <dcterms:abstract xml:lang="eng">The shape of nanoparticles is decisive for their self-assembly properties, as well as for the behavior of individual particles in many instances. The introduction and control of anisotropy is well-known for inorganic nanocrystals but a largely unresolved problem for polymer nanoparticles, especially for conjugated polymers. Here, we report a reproducible preparation method using heterophase polymerization for a range of stable dispersions of ellipsoidal conjugated polymer nanoparticles with sizes in the range of 50 to 180 nm and narrow size and shape distributions. The nanoparticles show a bright fluorescence with tunable emission wavelengths and quantum yields as high as ϕ=78 %. Structural investigations reveal the nanoparticles to be composed of a highly ordered β- and α'-phase within a nematic matrix. Preliminary studies on the origin of particle anisotropy suggest a concerted mechanism in which anisotropic shape evolves from intersegmental packing that occurs along with progressing chain formation by polymerization.</dcterms:abstract>
    <dc:creator>Mecking, Stefan</dc:creator>
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