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One-pot synthesis of conjugated poly(3-hexylthiophene)-b-poly(phenyl isocyanide) hybrid rod–rod block copolymers and its self-assembling properties

Authors

  • Zong-Quan Wu,

    Corresponding author
    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Cheng-Gang Qi,

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Na Liu,

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Ying Wang,

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Jun Yin,

    Corresponding author
    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Yuan-Yuan Zhu,

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Long-Zhen Qiu,

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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  • Hong-Bo Lu

    1. Key Laboratory of Specific Display Technology, Ministry of Education of People's Republic of China, Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, People's Republic of China
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ABSTRACT

In this article, the synthesis of a series of conjugated rod–rod block copolymers based on poly(3-hexylthiophene) (P3HT) and poly(phenyl isocyanide) (PPI) building blocks in a single pot is presented. Ni-catalyzed Grignard metathesis polymerization of 2,5-dibromo-3-hexylthiophene and subsequent addition of 4-isocyanobenzoyl-2-aminoisobutyric acid decyl ester in the presence of Ni(dppp)Cl2 as a single catalyst afford P3HT-b-PPI with tunable molecular weights and compositions. In solid state, microphase separation occurred as differential scanning calorimetric analysis of P3HT-b-PPI revealed two glass transition temperatures. In solutions, the copolymers can self-assemble into spherical aggregates with P3HT core and PPI shell in tetrahydrofuran and exhibit amorphous state in CHCl3. However, atomic force microscopy revealed that the block copolymers self-assemble into nanofibrils on the substrate. These unique features warrant the resultant conjugated rod–rod copolymers' potential study in organic photovoltaic and other electronic devices. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2939–2947

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