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

Pieter Willot | Zendy; Joan Teyssandier | Zendy; Wouter Dujardin | Zendy; Jinne Adisoejoso | Zendy; Steven De Feyter | Zendy; David Moerman | Zendy; Philippe Leclère | Zendy; Roberto Lazzaroni | Zendy; Guy Koeckelberghs | Zendy

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

Author(s) -

Pieter Willot,

Joan Teyssandier,

Wouter Dujardin,

Jinne Adisoejoso,

Steven De Feyter,

David Moerman,

Philippe Leclère,

Roberto Lazzaroni,

Guy Koeckelberghs

Publication year - 2014

Publication title -

rsc advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.746

H-Index - 148

ISSN - 2046-2069

DOI - 10.1039/c4ra11461b

Subject(s) - copolymer , block (permutation group theory) , polymer chemistry , materials science , visualization , chemical engineering , chemistry , polymer , computer science , composite material , data mining , geometry , mathematics , engineering

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.status: publishe

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