2014 Fiscal Year Final Research Report
Molecular Weight Control of pi-Conjugated Polymers Containing Carbon-Carbon Double Bonds
| Project/Area Number |
24550141
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Polymer chemistry
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| Research Institution | Kanagawa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OHTA Yoshihiro 神奈川大学, 工学部, 特別助教 (90625617)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 高分子合成化学 / 有機導体 / π共役系高分子 / リビング重合 / 触媒移動型重合 / 連鎖縮合重合 / Pd触媒 |
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| Outline of Final Research Achievements |
We have developed catalyst-transfer condensation polymerization (CTCP), which enables us to synthesize aromatic onjugated polymers such as polythiophene and polyfluorene with controlled molecular weight and low polydispersity. In this research, we tried to extended the range of CTCP for synthesis of not only aromatic conjugated polymers, but also aromatic and carbon-carbon double bond (C=C) conjugated polymers. We attempted Kumada-Tamao, Suzuki-Miyaura, and Heck CTCP for the synthesis of well-defined poly(phenylenevinylene)s (PPVs), but the obtained PPV had broad molecular weight distribution. From investigation of Suzuki-Miyaura model reactions, it turned out the cause of intermolecular transfer of the catalyst and structural requirements for intramolecular catalyst-transfer on a C=C. Furthermore, we successfully obtained well-defined polystilbene by Pd-CTCP of a monomer designed on the basis of the structural requirements.
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| Free Research Field |
高分子合成化学、有機化学
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