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Cylindrical polymer nanostructures by solution template wetting

Title data

Schlitt, Stefanie ; Greiner, Andreas ; Wendorff, Joachim H.:
Cylindrical polymer nanostructures by solution template wetting.
In: Macromolecules. Vol. 41 (May 2008) Issue 9 . - pp. 3228-3234.
ISSN 0024-9297
DOI: https://doi.org/10.1021/ma071822k

Official URL: Volltext

Abstract in another language

Wetting of porous templates, e.g., porous aluminum oxide with pore diameters in the range from 25 up to several 100 nm, by polymer melts has been demonstrated previously to be a highly effective way toward the preparation of polymer nanotubes. The concept evaluated in this contribution is to perform wetting from polymer solutions rather than from melts with particular emphasis on the influence of the molecular weight of the polymer used for wetting. Narrow molecular weight fractions were used for this purpose. The aim is to extend the nature of nanostructures which become available by wetting and to allow functionalization of the nanostructures by additives such as drugs or biological objects which decompose at elevated temperatures. Polystyrene was used as model polymer. Results are first of all that the quality of the solvent-good, Theta, or poor-and the polymer concentration are important wetting parameters as far as the preparation of stable cylindrical structures is concerned and second that nanowires, nanotubes, or cylindrical structures with a regular arrangement of voids can be prepared reproducibly by a proper variation of the molecular weight of the polymer used.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: POROUS TEMPLATES; NANOTUBES; MELTS
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 07 Apr 2015 11:03
Last Modified: 07 Apr 2015 11:03
URI: https://eref.uni-bayreuth.de/id/eprint/9653