| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
The thiophene monomer having trisiloxane units could be polymerized by Kumada Catalyst-Transfer Polymerization (KCTP) to afford well-defined poly(1,1,1,3,3,5,5-heptametyl-5-(6’-(thien-3’’-yl)hexyl)trisiloxane-2”,5”-diyl) (P3SiHT) with low dispersity, which was a viscous material with fluidity. In addition, we are successful in synthesizing novel all-conjugated hard-soft-hard ABA triblock copolymer, where A and B were P3HT and P3SiHT, respectively, based on the KCTP method. In the ABA triblock copolymer thin film, the formation of a hierarchical morphology is clearly observed in which P3HT crystalline domains align in the “edge-on” orientation within the excluded area from P3SiHT domains by phase separation, as supported by differential scanning calorimetry (DSC), UV-vis spectroscopy, and grazing incident X-ray diffraction (GIXD). These phase-separated P3HT crystalline domains can be physical linkers in the semiconducting thermoplastic elastomers.
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