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3D-ordered carbon materials by melt-shear organization for tailor-made hybrid core–shell polymer particle architectures

Vowinkel, S. and Schäfer, C. G. and Cherkashinin, G. and Fasel, C. and Roth, F. and Liu, N. and Dietz, C. and Ionescu, E. and Gallei, M. (2016):
3D-ordered carbon materials by melt-shear organization for tailor-made hybrid core–shell polymer particle architectures.
In: J. Mater. Chem. C, Royal Society of Chemistry Publishing, pp. 3976-3986, 4, (18), ISSN 2050-7526,
[Online-Edition: http://dx.doi.org/10.1039/c5tc03483c],
[Article]

Abstract

The melt-shear organization technique for tailor-made polystyrene-co-polyacrylonitrile (PSAN) shell and silica core particles is investigated yielding easy-scalable carbonaceous porous films after etching and appropriate thermal treatment. Monodisperse silica core particles are surface modified and transduced to a seeded emulsion polymerization for the preparation of processable well-defined core–shell PSAN particles. Melt-shear organization for particle alignment into a colloidal crystal structure is applied prior to the thermally induced crosslinking of the PSAN shell material, followed by etching and carbonization of the porous polymeric opal film. It is shown that polymer processing and applied thermal treatment protocols are crucial and capable of maintaining the pristine particle order in the free-standing carbonaceous films. The obtained films reveal hexagonally aligned pores as part of a conductive carbonaceous matrix. Conductivity and adjustable porosity are evidenced by conductive atomic force microscopy (C-AFM) and scanning electron microscopy (SEM) measurements, respectively. The herein developed melt-shear organization technique for a novel polymer-based carbonaceous particle precursor material is shown to be a potential platform for the preparation of scalable conductive materials. The route described here will be feasible for the preparation of doped and tailor-made conductive materials with a wide range of applications in the fields of electrodes, batteries, as well as sensing and photonic band gap materials.

Item Type: Article
Erschienen: 2016
Creators: Vowinkel, S. and Schäfer, C. G. and Cherkashinin, G. and Fasel, C. and Roth, F. and Liu, N. and Dietz, C. and Ionescu, E. and Gallei, M.
Title: 3D-ordered carbon materials by melt-shear organization for tailor-made hybrid core–shell polymer particle architectures
Language: English
Abstract:

The melt-shear organization technique for tailor-made polystyrene-co-polyacrylonitrile (PSAN) shell and silica core particles is investigated yielding easy-scalable carbonaceous porous films after etching and appropriate thermal treatment. Monodisperse silica core particles are surface modified and transduced to a seeded emulsion polymerization for the preparation of processable well-defined core–shell PSAN particles. Melt-shear organization for particle alignment into a colloidal crystal structure is applied prior to the thermally induced crosslinking of the PSAN shell material, followed by etching and carbonization of the porous polymeric opal film. It is shown that polymer processing and applied thermal treatment protocols are crucial and capable of maintaining the pristine particle order in the free-standing carbonaceous films. The obtained films reveal hexagonally aligned pores as part of a conductive carbonaceous matrix. Conductivity and adjustable porosity are evidenced by conductive atomic force microscopy (C-AFM) and scanning electron microscopy (SEM) measurements, respectively. The herein developed melt-shear organization technique for a novel polymer-based carbonaceous particle precursor material is shown to be a potential platform for the preparation of scalable conductive materials. The route described here will be feasible for the preparation of doped and tailor-made conductive materials with a wide range of applications in the fields of electrodes, batteries, as well as sensing and photonic band gap materials.

Journal or Publication Title: J. Mater. Chem. C
Volume: 4
Number: 18
Publisher: Royal Society of Chemistry Publishing
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science > Surface Science
11 Department of Materials and Earth Sciences > Material Science > Physics of Surfaces
07 Department of Chemistry
07 Department of Chemistry > Fachgebiet Makromolekulare Chemie
Date Deposited: 27 Jul 2016 07:37
Official URL: http://dx.doi.org/10.1039/c5tc03483c
Identification Number: doi:10.1039/c5tc03483c
Funders: M. G. and S. V. thank the Evangelisches Studienwerk Villigst and Max-Buchner-Foundation for financial support of this work.
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