Synthesis of Large-Pore Periodic Mesoporous Organosilicas Using Hexane as Swelling Agent

被引：0
作者：
Mandal, Manik [1 ]
Kruk, Michal
机构：
[1] CUNY Coll Staten Isl, Dept Chem, Ctr Engn Polymer Mat, 2800 Victory Blvd, Staten Isl, NY 10314 USA
来源：
AMPHIPHILES: MOLECULAR ASSEMBLY AND APPLICATIONS | 2011年 / 1070卷
关键词：
CENTERED-CUBIC STRUCTURE; SBA-15; SILICA; CHANNEL WALLS; MESOPHASE CONTROL; MICELLE EXPANDER; ORGANIC GROUPS; ADSORPTION; PMOS; TRIISOPROPYLBENZENE; SOLUBILIZATION;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Large-pore organosilicas with methylene and ethylene bridges in the framework were synthesized at low initial temperature (15 degrees C) using hexane as a swelling agent and Pluronic P123 (EO20PO70EO20) block copolymers as template. Organosilica materials with the nominal (KJS) pore sizes of 18 and 10 nm were obtained in case of methylene and ethylene bridges, respectively. The variation of amount of precursor was found to have almost negligible effect on the interplanar spacing and pore size. The use of swelling agents with different chain length allowed us to tailor the pore size from 9 to 11 nm in case of ethylene-bridged organosilicas, when the first step of the synthesis was carried out at room temperature.
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页码：249 / +
页数：4
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