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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/446077f8cc3d-092f-4fa6-b1c1-a711c71b9288
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文_fulltext (420.9 kB)
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J. Chem. Soc., Faraday T rans., 1997, 93(10), 1971-1979- Reproduced by permission of The Royal Society of Chemistry (RSC)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||
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| 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
× 吉野, 明広
× Okabayashi, Hirofumi
× Nishio, Etsuo
× 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 |
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| 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 | |||||||||||||||||||||
