2013 Fiscal Year Final Research Report
Chemoselective polycondensation of functional thiophene-based monomers using zincate complex
| Project/Area Number |
24655097
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer chemistry
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| Research Institution | Yamagata University (2013)
Tokyo Institute of Technology (2012) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 半導体高分子 / 精密合成 / 亜鉛錯体 / 重縮合 / ポリチオフェン |
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| Research Abstract |
Regioregular poly(3-hexylthiophene) (P3HT) has been a commonly used p-type semi-conducting material for solution processable organic electronics. To establish a living system of"Negishi-type Catalyst-Transfer Polycondensation" using zincate complex as a synthetic method for well-defined P3HT, the ligands of Ni catalyst were optimized. As a result, a ligand of 1,2-bis(dicyclohexylphosphino)ethane produced P3HTs with highly controlled number average molecular weights (1,700-33,000) and very low D values (1.03-1.17). The polymerization results were strongly influenced by steric hindrance and/or electron-donating ability of the ligands. In addition, we succeeded in the post-polymerization of P3HT and the synthesis of P3HT-b-Poly(3-octadecylthiophene), the latter of which is the first demonstration by NCTP using zincate complex. This methodology could also apply to an electron-deficient monomer containing the naphthalene bisimide group to synthesize an n-type semi-conducting material.
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[Presentation]2012
Author(s)
T. Mizobe, T. Higashihara, H. C. Wu, C. Lu, W. C. Chen, M. Ueda
Organizer
Polycondensation2012 Meeting
Place of Presentation
San Francisco,CA, USA
Year and Date
20120916-19
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