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1:3 ABAA sequence-regulated substituted polymethylenes via alternating radical copolymerization of methyl cinnamate and maleic anhydride followed by post-polymerization reactions
http://hdl.handle.net/2237/00032072
http://hdl.handle.net/2237/00032072db5d65fd-0e5a-4b67-a3d4-3ca1e21e518c
名前 / ファイル | ライセンス | アクション |
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EUROPEAN_POLYMER_JOURNAL_120_2019_109225 (2.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-05-01 | |||||
タイトル | ||||||
タイトル | 1:3 ABAA sequence-regulated substituted polymethylenes via alternating radical copolymerization of methyl cinnamate and maleic anhydride followed by post-polymerization reactions | |||||
言語 | en | |||||
著者 |
Terao, Yuya
× Terao, Yuya× Sugihara, Shizuka× Satoh, Kotaro× Kamigaito, Masami |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cinnamic acid | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Maleic anhydride | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Radical copolymerization | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Alternating copolymerization | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polymethylene | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Monomer sequence | |||||
抄録 | ||||||
内容記述 | Methyl cinnamate (M1) and maleic anhydride (M2), which are both non-homopolymerizable 1,2-disubtituted vinyl monomers, were radically copolymerized in toluene to result in 1:1 alternating copolymers. The 1:1 alternating sequence was confirmed by not only the monomer reactivity ratios obtained by using the terminal model fitted by the Kelen-Tüdõs method (r1 = 0.0035, r2 = 0.069) but also MALDI-TOF-MS analysis of the copolymers with controlled molecular weights and relatively narrow molecular weight distributions (Mw/Mn = 1.20), which were prepared by RAFT copolymerization using 2-cyano-2-propyl ethyl trithiocarbonate (CPETC) as the RAFT agent. The maleic anhydride unit was transformed into two methyl ester groups by hydrolysis followed by methylation. Since the propagation of methyl cinnamate occurred regioselectively via a styrenic radical, the methyl esterified copolymers possessed ABAA sequence-controlled substituted polymethylene structures (A: methyl ester, B: phenyl). The sequence-controlled substituted polymethylene showed good thermal properties (Td5 = 323 °C, Tg ≥ 192 °C) due to the rigid main-chain structures, which possessed a phenyl group on every fourth main-chain carbon in the repeating units in addition to three methyl ester groups on the other main-chain carbons. Block copolymers consisting of the rigid substituted polymethylene and soft poly(methyl acrylate) were also synthesized by RAFT polymerization. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2021-11-01 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.eurpolymj.2019.109225 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0014-3057 | |||||
書誌情報 |
en : European Polymer Journal 巻 120, p. 109225, 発行日 2019-11 |
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著者版フラグ | ||||||
値 | author |