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  1. 研究論文

Kinetics of interaction of 3-aminopropyltriethoxysilane on a silica gel surface using elemental analysis and diffuse reflectance infrared Fourier transform spectra

https://nitech.repo.nii.ac.jp/records/4460
https://nitech.repo.nii.ac.jp/records/4460
77f8cc3d-092f-4fa6-b1c1-a711c71b9288
名前 / ファイル ライセンス アクション
JCSF 本文_fulltext (420.9 kB)
J. Chem. Soc., Faraday T rans., 1997, 93(10), 1971-1979- Reproduced by permission of The Royal Society of Chemistry (RSC)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2012-11-06
タイトル
タイトル Kinetics of interaction of 3-aminopropyltriethoxysilane on a silica gel surface using elemental analysis and diffuse reflectance infrared Fourier transform spectra
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 Shimizu, Ichiro

× Shimizu, Ichiro

en Shimizu, Ichiro

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吉野, 明広

× 吉野, 明広

en Yoshino, Akihiro

ja 吉野, 明広
ISNI

ja-Kana ヨシノ, アキヒロ


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Okabayashi, Hirofumi

× Okabayashi, Hirofumi

en Okabayashi, Hirofumi

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Nishio, Etsuo

× Nishio, Etsuo

en Nishio, Etsuo

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O'Connor, Charmian J.

× O'Connor, Charmian J.

en O'Connor, Charmian J.

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著者別名
姓名 Yoshino, Akihiro
言語 en
姓名 吉野, 明広
言語 ja
姓名 ヨシノ, アキヒロ
言語 ja-Kana
bibliographic_information en : Journal of the Chemical Society. Faraday transactions.

巻 93, 号 10, p. 1971-1979, 発行日 1997-01-01
出版者
出版者 Royal Society of Chemistry
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 0956-5000
item_10001_source_id_32
収録物識別子タイプ NCID
収録物識別子 AA10743481
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
item_10001_relation_34
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1039/A608121E
関連名称 10.1039/A608121E
内容記述
内容記述タイプ Other
内容記述 In order to study the kinetics of interaction of 3-aminopropyltriethoxysilane (APTS) on silica gel, silica gel samples reacted with APTS were prepared by sampling the reaction mixture from the reactor at various time intervals, and the concentrations of 3-aminopropylsilyl (APS) groups modified on the silica gel surface were determined by elemental analysis. From the reaction time dependence of the APS concentration, it has been found that, after an initial fast reaction of APTS and silica gel, a slower second reaction and a much slower third reaction subsequently occur. For the three processes, the reaction rate constants (kobs/s-1) have been estimated and found to be kobsi=1.00×10-1 s-1 for the initial reaction, kobss=6.91×10-3 s-1 for the second reaction and kobst=4.20×10-4 s-1 for the third reaction. The diffuse reflectance infrared Fourier transform (DRIFT) spectra were measured for the same samples. Bands at 3734-3739 cm-1 were observed in the OH stretch mode region, and were found to decrease in intensity with reaction time, reflecting the rate of reaction of APTS on the silica gel. Analysis of an OH stretching band has also furnished reaction rate constants that are very similar to those obtained from the time dependence of the APS concentration. A mechanism for the three reaction processes is postulated.
言語 en
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