Direct formation of hydrophobic silica-based micro/mesoporous hybrids from polymethylhydrosiloxane and tetraethoxysilane
Author(s)
Yang, Dongjiang
Li, Junping
Xu, Yao
Wu, Dong
Sun, Yuhan
Zhu, Huaiyong
Deng, Feng
Griffith University Author(s)
Year published
2006
Metadata
Show full item recordAbstract
A facile pathway has been developed to prepare silica-based micro/mesoporous bimodal hybrids with super hydrophobicity. It is the special feature of this pathway that though there are no surfactants introduced during the hydrolysis and polycondensation process, the obtained materials exhibit high specific surface areas, high porosity and bimodal structure. Actually, polymethylhydrosiloxane (PMHS), one of the silica sources, assembles itself into a special conformation and plays the role of a structure-directing agent that leads to the formation of the micro/mesophases. Thus, it is thought this novel protocol might be a ...
View more >A facile pathway has been developed to prepare silica-based micro/mesoporous bimodal hybrids with super hydrophobicity. It is the special feature of this pathway that though there are no surfactants introduced during the hydrolysis and polycondensation process, the obtained materials exhibit high specific surface areas, high porosity and bimodal structure. Actually, polymethylhydrosiloxane (PMHS), one of the silica sources, assembles itself into a special conformation and plays the role of a structure-directing agent that leads to the formation of the micro/mesophases. Thus, it is thought this novel protocol might be a profitable complement to those methods previously reported for the preparation of porous materials.
View less >
View more >A facile pathway has been developed to prepare silica-based micro/mesoporous bimodal hybrids with super hydrophobicity. It is the special feature of this pathway that though there are no surfactants introduced during the hydrolysis and polycondensation process, the obtained materials exhibit high specific surface areas, high porosity and bimodal structure. Actually, polymethylhydrosiloxane (PMHS), one of the silica sources, assembles itself into a special conformation and plays the role of a structure-directing agent that leads to the formation of the micro/mesophases. Thus, it is thought this novel protocol might be a profitable complement to those methods previously reported for the preparation of porous materials.
View less >
Journal Title
Microporous and Mesoporous Materials
Volume
95
Issue
1-3
Subject
Macromolecular and Materials Chemistry not elsewhere classified
Chemical Sciences
Engineering