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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

Controlled Radical Copolymerization of Cinnamic Derivatives as Renewable Vinyl Monomers with Both Acrylic and Styrenic Substituents: Reactivity, Regioselectivity, Properties, and Functions

http://hdl.handle.net/2237/00030405
8d151b4c-e2b4-4997-a28f-5fd33ab37fa4
名前 / ファイル ライセンス アクション
BIOMACROMOLECULES_20_1_2019_192-203.pdf BIOMACROMOLECULES_20_1_2019_192-203 (1.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2019-06-07
タイトル
タイトル Controlled Radical Copolymerization of Cinnamic Derivatives as Renewable Vinyl Monomers with Both Acrylic and Styrenic Substituents: Reactivity, Regioselectivity, Properties, and Functions
著者 Terao, Yuya

× Terao, Yuya

WEKO 91821

Terao, Yuya

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Satoh, Kotaro

× Satoh, Kotaro

WEKO 91822

Satoh, Kotaro

Search repository
Kamigaito, Masami

× Kamigaito, Masami

WEKO 91823

Kamigaito, Masami

Search repository
権利
権利情報 “This document is the Accepted Manuscript version of a Published Work that appeared in final form in [Biomacromolecules], copyright © 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-xAWGtrJ8QmEBwdcHWqE4].”
抄録
内容記述 A series of cinnamic monomers, which can be derived from naturally occurring phenylpropanoids, were radically copolymerized with vinyl monomers such as methyl acrylate (MA) and styrene (St). Although the monomer reactivity ratios were close to zero for all the cinnamic monomers, such as methyl cinnamate (CAMe), cinnamic acid (CA), N-isopropyl cinnamide (CNIPAm), cinnamaldehyde (CAld), and cinnamonitrile (CN), they were incorporated into the copolymers and significantly increased the glass transition temperatures despite the relatively low incorporation rates of up to 40 mol % due to their rigid 1,2-disubstituted structures. The regioselectivity of the radical copolymerization of CAMe was evaluated on the basis of the results of ruthenium-catalyzed atom transfer radical additions as model reactions. The obtained products suggest that the radicals of MA and St predominantly attack the vinyl carbon of the carbonyl side of CAMe and that the propagation of CAMe mainly occurs via the styrenic radical. The ruthenium-catalyzed living radical polymerization, nitroxide-mediated polymerization (NMP), and reversible addition–fragmentation chain transfer (RAFT) polymerization provided the copolymers with controlled molecular weights, narrow molecular weight distributions, and controlled comonomer compositions. The copolymers of N-isopropylacrylamide (NIPAM) and CNIPAm prepared via RAFT copolymerization showed thermoresponsivity with a lower critical solution temperature (LCST) that could be tuned by altering the comonomer incorporation and a higher LCST than the copolymers of NIPAM and St, which possessed similar molecular weights and similar NIPAM contents, due to the additional N-isopropylamide groups in the CNIPAm units compared to the St units.
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2020-01-14
内容記述タイプ Other
出版者
出版者 ACS Publications
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/10.1021/acs.biomac.8b01298
ISSN(print)
収録物識別子タイプ ISSN
収録物識別子 1525-7797
書誌情報 Biomacromolecules

巻 20, 号 1, p. 192-203, 発行日 2019-01-14
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