Novel menthol releaser derived from as-synthesized mesoporous silica
Novel menthol releaser derived from as-synthesized mesoporous silica
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DOI：
10.1039/c4ra13364a
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发表时间：
2015
期刊：
影响因子：
3.9
通讯作者：
X. Dong;Y. Li;F. Wei;Yu Zhou;S. Zhou;J. Zhu
中科院分区：
文献类型：
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作者：
X. Dong;Y. Li;F. Wei;Yu Zhou;S. Zhou;J. Zhu
首次报道了利用合成的介孔分子筛MCM-41、MCM-48和SBA-15合成的新型薄荷醇模板剂，不仅节省了模板剂脱除的时间和能量，而且为胶束的应用开辟了新的途径。结果表明，CTAB（十六烷基三甲基溴化铵）在MCM-41中的胶束具有温度依赖性，即在373 K左右是柔性的，薄荷醇可以进入孔道，而在室温下是刚性的，吸附的薄荷醇通过物理拦截被封闭，在333 K时释放香料。考察了温度、胶束性质和分布对薄荷醇吸附和释放的影响，结果表明，在3种合成的介孔材料中，MCM-41在333 K温度下对薄荷醇的热释放能力最强，在室温下放置30 d以上。并将该新型薄荷醇增香剂初步应用于卷烟滤嘴。
A novel menthol releaser is reported for the first time by utilizing the as-synthesized mesoporous silica MCM-41, MCM-48, and SBA-15, which not only saves the energy and time for the removal of the template, but also opens new applications for micelles. The micelles of CTAB (cetyltrimethylammonium bromide) in the as-synthesized MCM-41 had a flexibility dependent on temperature, that is, they were flexible at around 373 K so that menthol could enter the channel, but rigid at ambient temperature so the adsorbed menthol was sealed through physical interception, and they would release the spice at 333 K. The influence of temperature, nature and distribution of micelles on the adsorption and release of menthol was carefully assessed, and among three as-synthesized mesoporous vessels, the as-synthesized MCM-41 exhibited the highest capability in thermal release of menthol at 333 K after open stored in ambient for 30 days or longer. Furthermore, this new menthol releaser was preliminarily used in the filter of cigarette.