具有大笼状孔的高度有序介孔有机硅的合成与结构鉴定

Synthesis and structural identification of a highly ordered mesoporous organosilica with large cagelike pores.

作者信息

Zhao Lan, Zhu Guangshan, Zhang Daliang, Di Yan, Chen Yue, Terasaki Osamu, Qiu Shilun

机构信息

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.

出版信息

J Phys Chem B. 2005 Jan 20;109(2):764-8. doi: 10.1021/jp0465231.

DOI:10.1021/jp0465231

PMID:16866439

Abstract

Using 1,2-bis(trimethoxysilyl)ethane as organosiloxane precursor and a triblock copolymer surfactant, Pluronic F127, as template, a highly ordered mesoporous organosilica with large cagelike pores has been successfully synthesized. Its structure was resolved to be 3-D cubic Fmm by high-resolution transmission electron microscopy. The intergrowth of hexagonal close-packed and cubic close-packed phases was observed in this material. The effect of different siliceous precursors on the mesostructure was also investigated.

摘要

以1,2-双（三甲氧基硅基）乙烷作为有机硅氧烷前驱体，以三嵌段共聚物表面活性剂Pluronic F127为模板，成功合成了具有大笼状孔的高度有序介孔有机硅。通过高分辨率透射电子显微镜确定其结构为三维立方Fmm。在该材料中观察到六方密堆积相和立方密堆积相的共生。还研究了不同硅质前驱体对介观结构的影响。