Citation: Chang-Geun Chae, Joonkeun Min, In-Gyu Bak, Jae-Suk Lee. Synthesis of a Rod-rod Diblock Copolymer, Poly(3-hexylthiophene)-block-poly(furfuryl isocyanate), through the Anionic Polymerization with an Oxyanionic Macroinitiator[J]. Chinese Journal of Polymer Science, ;2019, 37(9): 866-874. doi: 10.1007/s10118-019-2243-y shu

Synthesis of a Rod-rod Diblock Copolymer, Poly(3-hexylthiophene)-block-poly(furfuryl isocyanate), through the Anionic Polymerization with an Oxyanionic Macroinitiator

School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea

Corresponding author: Jae-Suk Lee, jslee@gist.ac.kr
Received Date: 31 December 2018
Revised Date: 10 January 2019
Available Online: 26 March 2019

A rod-rod diblock copolymer (diBCP), poly(3-hexylthiophene)-block-poly(furfuryl isocyanate) (P3HT-b-PFIC), was synthesized through the anionic polymerization with an oxyanionic macroinitiator of P3HT. The properties of the diBCP (molecular weight, dispersity, composition, thermal stability, UV-visible absorption, and thin film morphology) were determined by various analytical methods. P3HT-b-PFIC was blended with C₆₀ in a toluene solution to prepare a thin film of binary electron donor/acceptor system. Such blending enabled partial conjugation of the two components by the Diels-Alder reaction between furan and C₆₀ at 60 °C for 3 h; the mixture was then spin-cast as a thin film, and annealed at 250 °C for 24 h. Tapping-mode atomic force microscopy (AFM) revealed that P3HT and C₆₀ domains had nanoscale interfaces without a large phase segregation. This result indicated that the microphase separation of C₆₀-functionalized P3HT-b-PFIC preserved even at high temperature provided free C₆₀ molecules with channels to diffuse on the sides of P3HT domain, thus preventing the macroscopic crystallization of free C₆₀ through the interfacial stabilization.
- Rod-rod diblock copolymer,
- Poly(3-hexylthiophene)-block-poly(furfuryl isocyanate),
- C₆₀,
- Diels-Alder reaction,
- Nanoscale interfaces
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沈阳化工大学材料科学与工程学院沈阳 110142