Studies on the Preparation and Properties of Inorganic Molecularly Imprinted Polymer (MIP) Based on Tetraethoxysilane and Silane Coupling Agents

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题名:	Studies on the Preparation and Properties of Inorganic Molecularly Imprinted Polymer (MIP) Based on Tetraethoxysilane and Silane Coupling Agents
作者:	Lee,SC;Lin,HM;Chen,H
贡献者:	化學工程與材料工程學系
关键词:	SEPARATION;EXTRACTION;CAFFEINE
日期:	2009
上传时间:	2010-06-29 17:27:56 (UTC+8)
出版者:	中央大學
摘要:	Inorganic molecularly imprinted polymer (MIP) based on tetraethoxysilane (TEOS), methyl triethoxysilane (MTEOS), and phenyl triethoxysilane (PTEOS) by sol-gel process has been developed. The MIP's preparation conditions, H2O/Si molar ratios (R), template removal procedures, calcination temperatures, and quantity of ammonium hydroxide were investigated. The competition experiments of the MIP for template (caffeine, CAF) and analogue (theophylline, TH) were analyzed by high-performance liquid chromatography (HPLC). The results showed that the Ad(CAF) decreased with an increase of the H2O/Si molar ratios, but the selectivity (alpha) increased with an increase of the H2O/Si molar ratios in the MIP. In addition, in a comparison of the procedures for removing the template, calcination obtained better efficiency and higher selectivity than extraction. The optimum adsorption and selectivity of MIP were obtained with R = 10 and the template was removed by calcination at 600 degrees C. Moreover, the selectivity of the MIP (283.9) was greater than the nonimprinted polymer (2.45) under optimum preparation conditions. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 114: 3994-3999, 2009
關聯:	JOURNAL OF APPLIED POLYMER SCIENCE
显示于类别:	[化學工程與材料工程研究所] 期刊論文

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