Preparation and characterization of mesoporous silica spheres with bimodal pore structure from silica/hyperbranched polyester nanocomposites

被引：22
|
作者：
Zhao, Yongbin
Zou, Hanhua
Shi, Wenfang
Tang, Longxiang
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China
[2] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Anhui, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2006年 / 92卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
mesoporous silica; bimodal pore structure; hyperbranched polyester; sol-gel process; nanocomposite;
D O I：
10.1016/j.micromeso.2006.01.007
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The mesoporous silica spheres with bimodal pore structure were successfully prepared from silica/hyperbranched polyester (Boltorn (TM) H20, H20) and silica/glycidoxy-propyltrimethoxysilane modified H20 (H20M) using a simple sol-gel process, and characterized with TEM, FTIR, XPS, TGA, DSC, and N-2-BET computation. The effects of organic phase content on the characters of the formed mesoporous silica spheres were investigated. The results showed that the silica spheres prepared from silica/H20M have a bigger particle size, specific surface area and porous volume, and narrower bimodal pore-volume distribution compared with that formed by silica/H20. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：251 / 258
页数：8
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