2016 Fiscal Year Final Research Report
Atropos Polymerization: Controlled Polymerization by Programmed Termination
| Project/Area Number |
26620105
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 精密制御重合 / リビングアニオン重合 / 機能性停止剤 / 多成分連結反応 / 反応のプログラム化 / アクリルモノマー / メタクリル酸メチル / グラフトポリマー |
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| Outline of Final Research Achievements |
Modern polymer chemistry provides powerful means for precise synthesis of polymers with controlled molar masses and end-functionality. Among them, 'living polymerization' has been the key concept leading this field of precision polymerizations. For end-fuctionalization, however, it requires stepwise addition of terminating agent ('T') after the complete monomer consumption. In this work, in sharp contrast, we have developed a new concept of controlled polymerization involving programmed termination, named 'Atropos polymerization', in which all reagents including 'T' are mixed and the initiation takes place in the presence of 'T'. Typically, a mixture of (meth)acrylate monomers and 'T' with much lower reactivity was added to the initiator. The polymerization proceeded in a living manner until the complete monomer consumption, and then the termination followed to yield the respective end-functional polymer. The Atropos system was extended to the syntheses of block and graft copolymers.
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| Free Research Field |
高分子化学
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