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  1. 工学部
  1. 工学部
  2. 学術雑誌掲載論文 (工学部)

Thermoresponsive Properties of Sugar Sensitive Copolymer of N-isopropylacrylamide and 3-(Acrylamide) phenylboronic Acid

http://hdl.handle.net/10458/781
http://hdl.handle.net/10458/781
8abb33b1-f3ed-440c-92c2-614ac0279432
名前 / ファイル ライセンス アクション
author11.pdf author11.pdf (96.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-10-19
タイトル
タイトル Thermoresponsive Properties of Sugar Sensitive Copolymer of N-isopropylacrylamide and 3-(Acrylamide) phenylboronic Acid
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
キーワード polyol-boronate interaction, poly[(N-isopropylacrylamide)-co-(3-(acrylamido)phenylboronic)], stimuli-sensitive polymers, sugar sensitive polymers
資源タイプ
資源タイプ journal article
著者 塩盛, 弘一郎

× 塩盛, 弘一郎

WEKO 5570
e-Rad 80235506

en Shiomori, Koichiro
Shiomori, Kouichiro

ja 塩盛, 弘一郎

ja-Kana シオモリ, コウイチロウ


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Ivanov, A. E.

× Ivanov, A. E.

WEKO 5605

en Ivanov, A. E.

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Galaev, I. Y.

× Galaev, I. Y.

WEKO 5606

en Galaev, I. Y.

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Kawano, Y.

× Kawano, Y.

WEKO 5607

en Kawano, Y.

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Mattiasson, B.

× Mattiasson, B.

WEKO 5608

en Mattiasson, B.

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抄録
内容記述タイプ Abstract
内容記述 The copolymer of N-isopropylacrylamide and 3-(acrylamido) phenylboronic acid (82:18, Mn = 47000 g/mol) was prepared by free radical polymerization. The copolymer showed typical thermal precipitation behavior in aqueous solutions, its precipitation temperature (TP) being increased from 23 ーC to 32 ーC by increasing pH from 6.5 to 9.7, due to ionization of the phenylboronate units. The pKa was evaluated as 8.9ア0.1 from the effect of pH on TP. At pH>9, i.e. in the anionic form of the copolymer, TP was affected by very low concentration of glucose (5.6 mM, DTP = 1-1.5 ーC), due to the complex formation with a high binding constant. At higher concentration of polyols (560 mM, pH>8) the increase of TP was maximal for the copolymer complexes with fructose (7-10 ーC) and decreased in the order: fructose>glucose サ mannitol>pentaerythritol>galactose>Tris >glycerol. Di- and oligosaccharides (lactose, sucrose and dextran) caused a slight increase of TP at pH 7.5-8.7 while no effect was observed at pH>9. Isothermal dissolution of the copolymer suspension in water (27 ーC, pH 8.5) was possible in the presence of fructose or mannitol but required higher concentrations (1.4-3.6x103 mM) as compared to those which enabled the shift of TP in the soluble copolymer. The dissolution rate increased with fructose concentrations.
言語 en
書誌情報 en : Macromolecular chemistry and physics

巻 205, p. 27-35, 発行日 2004-01
出版者
出版者 John Wiley & Sons
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 10221352
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10984295
著者版フラグ
出版タイプ AM
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Cite as

塩盛, 弘一郎, Ivanov, A. E., Galaev, I. Y., Kawano, Y., Mattiasson, B., 2004, Thermoresponsive Properties of Sugar Sensitive Copolymer of N-isopropylacrylamide and 3-(Acrylamide) phenylboronic Acid: John Wiley & Sons, 27–35 p.

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