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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

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
db5d65fd-0e5a-4b67-a3d4-3ca1e21e518c
名前 / ファイル ライセンス アクション
EUROPEAN_POLYMER_JOURNAL_120_2019_109225.pdf EUROPEAN_POLYMER_JOURNAL_120_2019_109225 (2.8 MB)
Item type 学術雑誌論文 / Journal Article(1)
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
著者 Terao, Yuya

× Terao, Yuya

WEKO 98315

Terao, Yuya

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Sugihara, Shizuka

× Sugihara, Shizuka

WEKO 98316

Sugihara, Shizuka

Search repository
Satoh, Kotaro

× Satoh, Kotaro

WEKO 98317

Satoh, Kotaro

Search repository
Kamigaito, Masami

× Kamigaito, Masami

WEKO 98318

Kamigaito, Masami

Search repository
権利
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.
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
内容記述タイプ Other
出版者
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
DOI
関連識別子
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 ISSN
収録物識別子 0014-3057
書誌情報 European Polymer Journal

巻 120, p. 109225, 発行日 2019-11
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