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Issue 12, 2015
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Direct visualization of microphase separation in block copoly(3-alkylthiophene)s

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Abstract

A poly(3-octylthiophene)-block-poly(3-butylthiophene) block copolymer was synthesized in a one-pot block copolymerization reaction, starting from a functional o-tolyl initiator in order to maximize A–B diblock copolymer formation. First, the composition of this block copolymer is extensively studied using gel permeation chromatography (GPC) and 1H NMR measurements. A complete block copolymer formation is obtained with almost equal block length; B–A–B block copolymer contamination is shown to be very limited. In a second part, the self-assembly was analysed through differential scanning calorimetry (DSC), atomic force microscopy (AFM) and scanning tunnelling microscopy (STM) measurements, focusing on the microphase separation. A direct visualization of the different microphases can be obtained with STM.

Graphical abstract: Direct visualization of microphase separation in block copoly(3-alkylthiophene)s

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Supplementary files

Article information


Submitted
29 Sep 2014
Accepted
22 Dec 2014
First published
22 Dec 2014

RSC Adv., 2015,5, 8721-8726
Article type
Paper
Author version available

Direct visualization of microphase separation in block copoly(3-alkylthiophene)s

P. Willot, J. Teyssandier, W. Dujardin, J. Adisoejoso, S. De Feyter, D. Moerman, P. Leclère, R. Lazzaroni and G. Koeckelberghs, RSC Adv., 2015, 5, 8721
DOI: 10.1039/C4RA11461B

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