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A novel conducting amphiphilic diblock copolymer containing regioregular poly(3-hexylthiophene)

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Abstract

Amphiphilic rod-coil diblock copolymers combining the conductive features of a conjugated polymer and nanoscale morphologies arising from micro-phase separation of dissimilar blocks are attractive as potential materials for electronic applications. The synthesis and properties are reported for a novel amphiphilic diblock copolymer containing a block of regioregular poly(3-hexylthiophene) (P3HT) and poly(methyl methacrylate-random-2-hydroxyethyl methacrylate) (P(MMA-r-HEMA)) as the hydrophilic block. Well-defined rod-coil P3HT-b-P(MMA-r-HEMA) amphiphilic diblock copolymers with molar masses of around 11,000 and low molar mass dispersities (Đ M ) below 1.5 were successfully synthesized via the combination of quasi-living Grignard metathesis (GRIM) polymerization and atom transfer radical polymerization (ATRP). P3HT was first obtained in a regioregular form with an average molecular weight of around 7,200 g/mol and Đ M below 1.3. Post-polymerization end-group modifications of the asobtained P3HT were then successfully realized to give a macroinitiator for the ATRP of MMA and HEMA co-monomers, resulting in the P3HT-b-P(MMA-r-HEMA) diblock copolymers. The structure and properties of the resulting diblock copolymers were characterized by proton nuclear magnetic resonance (1H NMR), gel permeation chromatography (GPC), Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy and modulated differential scanning calorimetry (MDSC).

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Authors and Affiliations

  1. Department of Basic Science of Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam

    Ha Tran Nguyen

  2. National Key Laboratory of Polymer and Composite Materials — Ho Chi Minh City University of Technology, 286 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam

    Bien Che Dong & Nieu Huu Nguyen

Authors
  1. Ha Tran Nguyen
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  2. Bien Che Dong
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  3. Nieu Huu Nguyen
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Correspondence to Ha Tran Nguyen or Nieu Huu Nguyen.

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Nguyen, H.T., Dong, B.C. & Nguyen, N.H. A novel conducting amphiphilic diblock copolymer containing regioregular poly(3-hexylthiophene). Macromol. Res. 22, 85–91 (2014). https://doi.org/10.1007/s13233-014-2012-2

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  • DOI: https://doi.org/10.1007/s13233-014-2012-2

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