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Chemical design of inorganic-organic mesostructured materials and mesoporous materials using molecular assemblies

利用分子组装体进行无机-有机介观结构材料和介孔材料的化学设计

基本信息

批准号：
11450253
负责人：
KURODA Kazuyuki
金额：
$ 9.92万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

项目摘要

The formation of novel mesoporous silicas KSW-2 with rectangular arrangements of square or lozenge one-dimensional channels by mild acid treatment of a layered alkyltrimethylammonium (C16TMA)-kanemite complex was performed.A continuous mesoporous silica film with uniaxially aligned hexagonal mesochannels was formed on a silica glass substrate using a rubbing-treated thin polyimide coating on the substrate.Taxol and chlorophyll a were adsorbed into FSM-type mesoporous silicas. The adsorption behavior of Taxol depended on the pore size and the solvents. The desorption of Taxol could be performed with a mixture of methanol and water. Chlorophyll a was adsorbed into the mesoporous silica without pheophytinization when the surface silanol groups were modified with 1, 4-butanediol, whereas pheophytinization occurred in unmodified mesoporous silica. In order to understand the nature of mesoporous silicas as immobilizing media for organic guest species, the adsorption of a cationic luminescence probe, tris (2, 2'-bipyridine) ruthenium (II), into a mesoporous silica was investigated. The adsorption of a cationic azobenzene derivative into aluminium containing mesoporous silica films was also investigated. Photoisomerization was found to occur and the mesoporous aluminium containing silica films were proved to be useful reaction media to immobilize organic photochromic species.

通过弱酸处理烷基三甲基铵（C16 TMA）-kanemite复合物，制备了具有正方形或菱形一维孔道的新型介孔氧化硅KSW-2.在氧化硅玻璃基底上，通过摩擦处理的聚酰亚胺薄膜，制备了具有单轴排列的六方介孔氧化硅薄膜，并将紫杉醇和叶绿素a吸附到FSM-2中，研究了其对紫杉醇和叶绿素a的吸附性能.结果表明，KSW-2介孔氧化硅薄膜具有单轴排列的六方介孔氧化硅薄膜，其介孔氧化硅薄膜具有单轴排列的六方介孔氧化硅薄膜.型介孔二氧化硅。紫杉醇的吸附行为取决于孔径和溶剂。紫杉醇的解吸可以用甲醇和水的混合物进行。用1，4-丁二醇修饰介孔二氧化硅表面的硅醇基团后，叶绿素a没有发生脱镁叶绿素化，而未修饰的介孔二氧化硅表面发生脱镁叶绿素化。为了了解介孔氧化硅作为有机客体物种固定介质的性质，研究了阳离子发光探针三（2，2 '-联吡啶）钌（II）在介孔氧化硅上的吸附.研究了偶氮苯衍生物在含铝介孔氧化硅膜中的吸附行为。发现光致异构化的发生和介孔含铝二氧化硅薄膜被证明是有用的反应介质，以消除有机光致变色物种。