Figure 1: Fibres from rrP3HT-b-rsP3HT.
From: Uniform electroactive fibre-like micelle nanowires for organic electronics
(a) Chemical structure of rrP3HT-b-rsP3HT diblock copolymer and the schematic illustration of Step 1, self-assembly of rrP3HT-b-rsP3HT to form fibres in anisole; Step 2, fragmentation of the fibres; and Step 3, thermal annealing to form uniform fibres. TEM images of the unfragmented fibres from (b) rrP3HT48-b-rsP3HT43 and (c) rrP3HT106-b-rsP3HT47, which were obtained by directly dispersing the polymer solid in anisole at 0.1 mg ml−1 at 80 °C for 1 h and then slowly cooling to 23 °C. Uniform fibres from rrP3HT106-b-rsP3HT47 prepared by subjecting anisole solutions of fibres (0.1 mg ml−1) to ultrasonication at 0 °C for 1 h, followed by thermal annealing at (d) 56.0 °C, (e) 62.5 °C, (f) 64.0 °C for 30 min and then slow (ca. 6 h) cooling to 23 °C. Scale bars, 500 nm. (g) Plot of the Ln of the rrP3HT106-b-rsP3HT47 fibres versus self-seeding temperatures.
