修飾矽膠之擴散反射式紅外光表面光譜研究

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修飾矽膠之擴散反射式紅外光表面光譜研究

Diffuse Reflectance Infrared Transform Spectroscopy(DRIFTS) Study of Modified Silica Gel Surface

丁光明 , Masters　　Advisor：楊永華　　

繁體中文

修飾矽膠；擴散反射式紅外光譜；表面光譜； modified silica gel ； DRIFTS ； surface spectroscopy

Abstract │ Reference (55) │ Altmetrics

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Abstract
In this study, DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy) was applied on copolymerized silica-based ion-exchanger containing quaternary phosophonium salts. The rapid, high repeatable qualitative and quantitative analysis model was constructed to explain the surface spectra.
For silica gel samples, finer particle size caused less severe spectral distortion and more effective analyzing results. Comparing with the conventional transmittance spectra, more accurate surface quantitative characters can be obtained by DRIFT method. By pretreating silica gel with different amount of KBr, the exact value for absorption yielded an excellent linear correlation between Kubelka-Munk function and the sample concentration. The high-resolution setting in DRIFTS was attributed to these serial spectra. Quantitative measuring the peak intensities, it was proportioned to the different reaction temperatures and various amount of coupling agents modified on silica gel. From the spectra of poly-coupling agents, peak absorption and shifts can be observed from force field effect. The kinetic results showed that the modified reactions were faster at initial time and assumed first order reaction.

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1. Gjerde, D. T.; Fritz J.S.; Shmuckler, G. J. Chromatogr. 1979, 509, 186. "Anion Chromatography with Low-Conductivity Eluents".
連結：
2. Lee, D. P. J. Chromatogr. Sci. 1984, 22, 327. "A New Anion Exchange Phase for Ion Chromatography".
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3. Duval, D.L.; Fritz, J. S. J. Chromatogr. 1984, 295, 89. "Coated Anion-Exchanger Resins for Ion Chromatography".
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4. Haddad, P. R.; Jackson, P. E. J. Chromatogr. 1985, 346, 139. "Performance Characteristics of Some Commercially Avaliable Low-Capacity Anion-Exchange Columns Suitable for Non-Suppressed Ion Chromatography".
連結：
5. Venton, D. L.; Gudipati, E. Silanes, Surfaces, and Interfaces. 1986, p 73. "Entrapment of Proteins Using Organo Functionalized Polysilane Copolymers".
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