Metal‐Organic Frameworks for Practical Separation of Cyclic and Linear Polymers
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- Taku Sawayama
- Department of Advanced Materials Science Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8561 Japan
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- Yubo Wang
- Graduate School of Chemical Sciences and Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan
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- Tomohisa Watanabe
- Graduate School of Chemical Sciences and Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan
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- Masayoshi Takayanagi
- The Center for Data Science Education and Research Shiga University Hikone Shiga 522-8522 Japan
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- Takuya Yamamoto
- Division of Applied Chemistry Faculty of Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan
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- Nobuhiko Hosono
- Department of Advanced Materials Science Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8561 Japan
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- Takashi Uemura
- Department of Advanced Materials Science Graduate School of Frontier Sciences The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8561 Japan
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説明
<jats:title>Abstract</jats:title><jats:p>The purification step in the manufacturing of cyclic polymers is difficult as complete fractionation to eliminate linear impurities requires considerable effort. Here, we report a new polymer separation methodology that uses metal‐organic frameworks (MOFs) to discriminate between linear and cyclic polyethylene glycols (PEGs) via selective polymer insertion into the MOF nanopores. Preparation of a MOF‐packed column allowed analytical and preparative chromatographic separation of these topologically distinct pairs. In addition, gram‐scale PEGs with only cyclic structures were successfully obtained from a crude reaction mixture by using MOF as an adsorbent.</jats:p>
収録刊行物
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- Angewandte Chemie International Edition
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Angewandte Chemie International Edition 60 (21), 11830-11834, 2021-04-15
Wiley
