Crystallization in hybrid organic-inorganic materials induced by self-organization in basic conditions
Crystallization in hybrid organic-inorganic materials induced by self-organization in basic conditions
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DOI：
10.1021/cm062660u
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发表时间：
2007-04-17
影响因子：
8.6
通讯作者：
Yoko, Toshinobu
中科院分区：
文献类型：
--
作者：
Menaa, Bouzid;Takahashi, Masahide;Yoko, Toshinobu
在高碱性条件下，通过简单的无溶剂合成得到了有机-无机杂化晶体材料。通过溶胶-凝胶首次实现了有组织的混合结构的形成，而不使用桥接的有机硅前体。3-缩水甘油氧基丙基三甲氧基硅烷（其是带有末端环氧基的有机改性的醇盐）已用于合成。已观察到环氧树脂的打开产生聚/低聚（环氧乙烷）链或对二氧六环物质。在第二种情况下，晶体混合物已形成凝胶化过程中的自组织。通过广角X射线散射和X射线衍射分析证实了聚集体的结晶性质，环氧开环/自缩合导致以Si取代的2，5-二（丙氧基甲基）-1，4-二氧六环有机间隔基为支柱的柱撑型有机-无机杂化结构。
Hybrid organic-inorganic crystalline materials have been obtained from a simple solvent-free synthesis in highly basic conditions. The formation of an organized hybrid structure has been achieved for the first time via sol-gel without employing bridged organosilica precursors. 3-glycidoxypropyltrimethoxysilane, which is an organically modified alkoxide bearing a terminal epoxy group, has been used for the synthesis. The opening of the epoxy has been observed to produce poly/oligo(ethylene oxide) chains or p-dioxane species. In the second case crystalline hybrids have been formed by self-organization during gelation. Analysis performed by wide-angle X-ray scattering and X-ray diffraction have confirmed the crystalline nature of the aggregates, epoxy ring opening/self-condensation which resulted in a pillared-type organic-inorganic hybrid structure with Si-substituted 2,5-bis(propoxymethyl)-1,4-dioxane organic spacer as pillar.