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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Influence of synthesis temperature on the structural characteristics of mesoporous silica
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Influence of synthesis temperature on the structural characteristics of mesoporous silica

机译：合成温度对介孔二氧化硅结构特征的影响

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摘要

The characteristics of mesoporous silica prepared at different temperatures and the behavior of this system relating to the microencapsulation of a model drug were investigated. The preparation of mesoporous materials was initiated with the dissolution of a surfactant in distilled water and strong acid medium. After this, tetraethyl orthosilicate was added under agitation. The mixture was heated for 24 h at the synthesis temperature (60 degrees C, 80 degrees C, 100 degrees C and 130 degrees C) under static conditions. The surfactant was removed by calcination, which was carried out by increasing the temperature to 550 degrees C for 5 h. Atenotol was used as a model drug to study the kinetics of drug delivery. It could be observed that aging materials at higher temperatures presents no microporosity, and this influences the control of the release of the model drug. (c) 2006 Elsevier B.V. All rights reserved.
机译：研究了在不同温度下制备的介孔二氧化硅的特性，以及该系统与模型药物微囊化有关的行为。中孔材料的制备开始于将表面活性剂溶解在蒸馏水和强酸介质中。此后，在搅拌下加入原硅酸四乙酯。在静态条件下，将混合物在合成温度（60摄氏度，80摄氏度，100摄氏度和130摄氏度）下加热24小时。通过煅烧除去表面活性剂，该煅烧通过将温度升高至550℃持续5h来进行。使用阿替诺尔作为模型药物来研究药物递送的动力学。可以观察到，在较高温度下老化的材料没有微孔，这影响了模型药物释放的控制。 （c）2006 Elsevier B.V.保留所有权利。

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