Crystallization as a Means for the Switching of Nanoscale Containers

Tong, Qiong; Krumova, Marina; Göttker-Schnetmann, Inigo; Mecking, Stefan

Crystallization as a Means for the Switching of Nanoscale Containers

Dateien

Crystallization_as_a_Means_for_the_Switching_of_Nanoscale_Containers.pdfGröße: 328.77 KBDownloads: 417

Datum

2008

Autor:innen

Tong, Qiong

Krumova, Marina

Göttker-Schnetmann, Inigo

Mecking, Stefan

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Chemie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Langmuir. 2008, 24(6), pp. 2341-2347. ISSN 0743-7463. eISSN 1520-5827. Available under: doi: 10.1021/la702500n

Zusammenfassung

Melting and crystallization are reported as a means for reversible switching of nanoscale containers. Aqueous dispersions of 10 nm particles of polyethylene with variable branching and crystallinity were prepared by catalytic polymerization with water-soluble Ni(II) complexes. Fluorescence studies of lipophilic probe molecules show that in the low-crystallinity particles they experience a more apolar environment. In crystalline particles, the amorphous portions which can accommodate guest molecules are at the periphery of the particle, such that the probe experiences the water-particle interface to some extent. The polarity experienced by the probe molecules can be switched reversibly by melting and crystallization of the individual dispersed particles. The temperature at which this occurs can be adjusted via the microstructure, that is, degree of branching, of the polymer.

Fachgebiet (DDC)

540 Chemie

Zitieren

ISO 690

TONG, Qiong, Marina KRUMOVA, Inigo GÖTTKER-SCHNETMANN, Stefan MECKING, 2008. Crystallization as a Means for the Switching of Nanoscale Containers. In: Langmuir. 2008, 24(6), pp. 2341-2347. ISSN 0743-7463. eISSN 1520-5827. Available under: doi: 10.1021/la702500n

BibTex

@article{Tong2008Cryst-9610,
  year={2008},
  doi={10.1021/la702500n},
  title={Crystallization as a Means for the Switching of Nanoscale Containers},
  number={6},
  volume={24},
  issn={0743-7463},
  journal={Langmuir},
  pages={2341--2347},
  author={Tong, Qiong and Krumova, Marina and Göttker-Schnetmann, Inigo and Mecking, Stefan}
}

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Universitätsbibliographie

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