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Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures
| Title: | Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures |
| Authors: | Xia, Xiaochao Browse this author | | Gao, Tianle Browse this author | | Li, Feng Browse this author | | Suzuki, Ryota Browse this author | | Isono, Takuya Browse this author | | Satoh, Toshifumi Browse this author →KAKEN DB |
| Keywords: | Copolymerization | | Copolymers | | Ethers | | Monomers | | Polymers |
| Issue Date: | 5-Oct-2022 |
| Publisher: | American Chemical Society |
| Journal Title: | Journal of the American Chemical Society |
| Volume: | 144 |
| Issue: | 39 |
| Start Page: | 17905 |
| End Page: | 17915 |
| Publisher DOI: | 10.1021/jacs.2c06860 |
| Abstract: | Synchronously and thoroughly adjusting the chemical structure difference between two blocks of the diblock copolymer is very useful for designing materials but difficult to achieve via self-switchable alternating copolymerization. Here, we report self-switchable alternating copolymerization from a mixture of two different cyclic anhydrides, epoxides, and oxetanes, where a simple alkali metal carboxylate catalyst switches between ring-opening alternating copolymerization (ROCOP) of cyclic anhydrides/epoxides and ROCOP of cyclic anhydrides/oxetanes, resulting in the formation of a perfect block tetrapolymer. By investigating the reactivity ratio of these comonomers, a reactivity gradient was established, enabling the precise synthesis of block copolymers with synchronous adjustment of each unit's chemical structure/sequence/topology. Consequently, a diblock tetrapolymer with two glass transition temperatures (T-g) can be easily produced by adjusting the difference in chemical structures between the two blocks. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, copyright c American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-PNW7369BK2VW8IN3ITZYl. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/90407 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐藤 敏文
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