Sequence-regulated copolymerization based on periodic covalent positioning of monomers along one-dimensional nanochannels
説明
The design of monomer sequences in polymers has been a challenging research subject, especially in making vinyl copolymers by free-radical polymerization. Here, we report a strategy to obtain sequence-regulated vinyl copolymers, utilizing the periodic structure of a porous coordination polymer (PCP) as a template. Mixing of Cu2+ ion and styrene-3, 5-dicarboxylic acid (S) produces a PCP, [Cu(styrene-3, 5-dicarboxylate)] n , with the styryl groups periodically immobilized along the one-dimensional channels. After the introduction of acrylonitrile (A) into the host PCP, radical copolymerization between A and the immobilized S is performed inside the channel, followed by decomposing the PCP to isolate the resulting copolymer. The predominant repetitive SAAA sequence in the copolymer is confirmed by monomer composition, NMR spectroscopy and theoretical calculations. Copolymerization using methyl vinyl ketone also provides the same type of sequence-regulated copolymer, showing that this methodology has a versatility to control the copolymer sequence via transcription of PCP periodicity at the molecular level.
収録刊行物
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- Nature Communications
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Nature Communications 9 329-, 2018-01-23
Springer Nature
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詳細情報 詳細情報について
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- CRID
- 1050001335854637056
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- NII論文ID
- 120006380534
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- ISSN
- 20411723
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- HANDLE
- 2433/228951
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- PubMed
- 29362404
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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