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Syndiotactic- and Heterotactic-Specific Radical Polymerizations of N-n-Propyl-α-fluoroacrylamide and Phase-Transition Behaviors of Aqueous Solutions of Poly(N-n-propyl-α-fluoroacrylamide)
https://tokushima-u.repo.nii.ac.jp/records/2008152
https://tokushima-u.repo.nii.ac.jp/records/20081521275fd24-b3ac-4860-ae43-ab33b5eb4afa
名前 / ファイル | ライセンス | アクション |
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Item type | 文献 / Documents(1) | |||||||||||||||||||||||||||||
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公開日 | 2020-09-11 | |||||||||||||||||||||||||||||
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アクセス権 | open access | |||||||||||||||||||||||||||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||
資源タイプ | journal article | |||||||||||||||||||||||||||||
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関連識別子 | https://doi.org/10.1002/pola.26024 | |||||||||||||||||||||||||||||
関連名称 | 10.1002/pola.26024 | |||||||||||||||||||||||||||||
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出版タイプ | AM | |||||||||||||||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||||||||||
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タイトル | Syndiotactic- and Heterotactic-Specific Radical Polymerizations of N-n-Propyl-α-fluoroacrylamide and Phase-Transition Behaviors of Aqueous Solutions of Poly(N-n-propyl-α-fluoroacrylamide) | |||||||||||||||||||||||||||||
著者 |
平野, 朋広
× 平野, 朋広
WEKO
59
× フルタニ, タカヒロ
× 押村, 美幸
WEKO
473
× 右手, 浩一
WEKO
239
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内容記述 | Radical polymerization of N-n-propyl-α-fluoroacrylamide (NNPFAAm) was investigated in several solvents at low temperatures in the presence or absence of Lewis bases, Lewis acids, alkyl alcohols, silyl alcohols, or fluorinated alcohols. Different effects of solvents and additives on stereospecificity were observed in the radical polymerizations of NNPFAAm and its hydrocarbon analogs such as N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm); for instance, syndiotactic (and heterotactic) specificities were induced in radical polymerization of NNPFAAm in polar solvents (and in toluene in the presence of alkyl and silyl alcohols), whereas isotactic (and syndiotactic) specificities were induced in radical polymerizations of the hydrocarbon analogs under the corresponding conditions. In contrast, heterotactic specificity induced by fluorinated alcohols was further enhanced in radical polymerization of NNPFAAm. The effects of stereoregularity on the phase-transition behaviors of aqueous solutions of poly(NNPFAAm) were also investigated. Different tendencies in stereoregularity were observed in aqueous solutions of poly(NNPFAAm)s from those in solutions of the hydrocarbon analogs such as poly(NIPAAm) and poly(NNPAAm). The polymerization behavior of NNPFAAm and the phase-transition behavior of aqueous poly(NNPFAAm) are discussed based on possible fluorine–fluorine repulsion between the monomer and propagating chain-end, and neighboring monomeric units. | |||||||||||||||||||||||||||||
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主題 | heterotactic | |||||||||||||||||||||||||||||
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主題 | hydrogen bonding | |||||||||||||||||||||||||||||
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主題 | radical polymerization | |||||||||||||||||||||||||||||
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主題 | stereospecific polymers | |||||||||||||||||||||||||||||
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主題 | stimuli-sensitive polymers | |||||||||||||||||||||||||||||
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主題 | syndiotactic | |||||||||||||||||||||||||||||
書誌情報 |
en : Journal of Polymer Science Part A : Polymer Chemistry 巻 50, 号 12, p. 2471-2483, 発行日 2012-03-23 |
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収録物識別子タイプ | ISSN | |||||||||||||||||||||||||||||
収録物識別子 | 0887624X | |||||||||||||||||||||||||||||
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収録物識別子タイプ | ISSN | |||||||||||||||||||||||||||||
収録物識別子 | 10990518 | |||||||||||||||||||||||||||||
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収録物識別子タイプ | NCID | |||||||||||||||||||||||||||||
収録物識別子 | AA1068915X | |||||||||||||||||||||||||||||
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収録物識別子タイプ | NCID | |||||||||||||||||||||||||||||
収録物識別子 | AA11624127 | |||||||||||||||||||||||||||||
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出版者 | Wiley | |||||||||||||||||||||||||||||
権利情報 | ||||||||||||||||||||||||||||||
権利情報 | This is the peer reviewed version of the following article: Hirano, T., Furutani, T., Oshimura, M. and Ute, K. (2012), Syndiotactic‐ and heterotactic‐specific radical polymerizations of N‐n‐propyl‐α‐fluoroacrylamide and phase‐transition behaviors of aqueous solutions of poly(N‐n‐propyl‐α‐fluoroacrylamide). J. Polym. Sci. A Polym. Chem., 50: 2471-2483., which has been published in final form at https://doi.org/10.1002/pola.26024. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | |||||||||||||||||||||||||||||
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識別子 | 244718 | |||||||||||||||||||||||||||||
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言語 | eng |