Issue 15, 2010
From the journal:

Soft Matter

Siliconoxycarbide nanorings from polystyrene-b-polydimethylsiloxane diblock copolymer thin films

Chia-Cheng Chao,a   Rong-Ming Ho,*ab   Prokopios Georgopanos,c   Apostolos Avgeropoulos*c  and  Edwin L. Thomasd  

* Corresponding authors

a Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu, Taiwan, R.O.C

b Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan, R.O.C
E-mail: rmho@mx.nthu.edu.tw
Fax: + 886-3-5715408
Tel: + 886-3-5738349

c Department of Materials Science & Engineering, University of Ioannina, University Campus, Ioannina, Greece

d Departmemt of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA

Abstract

A silicon-containing diblock copolymer, poly(styrene)-b-poly(dimethylsiloxane) (PS-PDMS), with PDMS cylinders in a PS matrix has been synthesized through sequential anionic polymerization. PS-PDMS thin film was prepared by spin coating on silicon wafer. Perpendicular PDMS cylinders in the PS-PDMS thin film can be obtained by solvent annealing. The PS-PDMS thin film was employed as template for the formation of core-shell cylinder thin films through surface reconstruction. By taking advantage of the silicon-containing character, silicon oxy carbide nanopattern can be fabricated due to the crosslinking of PDMS blocks and the degradation of PS blocks through one-step oxygen plasma treatment. As a result, the formation of silicon oxy carbide nanoring arrays can be achieved. This method provides a convenient way to create silicon oxy carbide nanoring arrays from diblock copolymers.

Graphical abstract: Silicon oxy carbide nanorings from polystyrene-b-polydimethylsiloxane diblock copolymer thin films

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Article information

DOI
https://doi.org/10.1039/C002165B
Article type
Paper
Submitted
02 Feb 2010
Accepted
09 Apr 2010
First published
02 Jun 2010

Soft Matter, 2010,6, 3582-3587

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Silicon oxy carbide nanorings from polystyrene-b-polydimethylsiloxane diblock copolymer thin films

C. Chao, R. Ho, P. Georgopanos, A. Avgeropoulos and E. L. Thomas, Soft Matter, 2010, 6, 3582 DOI: 10.1039/C002165B

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