| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Synthesis of fluorescent and/or semiconducting polymers (π-conjugated polymers) has attracted much attention with the development of palladium-catalyzed cross-coupling reactions. Conventional cross-coupling reactions such as Stille-type (Ar-SnR3 + Br-Ar) and Suzuki-Miyaura (Ar-BR3 + Br-Ar) for carbon-carbon bond formation have contributed to efficient synthetic pathways to π-conjugated polymers．Recently, direct arylation reaction (Ar-H + Br-Ar) has been developed to replace the common pathway of π-conjugated polymer synthesis because the reaction uses easily accessible to the monomers proceeds with high atom efficiency without generation of organometallic byproducts that occur with conventional pathways. Direct arylation polycondensation using solid-supported palladium catalysts results in highly regioselective polythiophenes. Moreover, various π-conjugated polymer structures such as linear, bent, branched, and network were also synthesized via direct arylation of unique monomers.
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