Effect of drying rate on mesoporous silica morphology templated from PEO-PPO-PEO block copolymer assemblies

The authors have shown that the rapid drying process of the nanocomplex of silicate and pluronics is favorable for the formation of closed nanopores, where the enclosure of the pores is promoted due to the solidification of silica prior to the formation of the liquid crystalline phase of pluronics m...

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Published inJournal of Materials Science Vol. 39; no. 12; pp. 4045 - 4047
Main Authors Pei, L, Kurumada, KI, Tanigaki, M, Hiro, M, Susa, K
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Science and Business Media LLC 01.06.2004
Springer
Springer Nature B.V
Subjects
Block copolymers
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Materials science
Morphology
Porous materials
Silicon dioxide
Triblock copolymer
Transmission electron microscopy
Non ionic surfactant
Adsorption isotherm
Desorption isotherm
Propylene oxide copolymer
Nitrogen
Ethylene oxide copolymer
Porous material
Silica
Mesoporosity
Drying
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Summary:The authors have shown that the rapid drying process of the nanocomplex of silicate and pluronics is favorable for the formation of closed nanopores, where the enclosure of the pores is promoted due to the solidification of silica prior to the formation of the liquid crystalline phase of pluronics molecular assemblies Here, we report the effect of drying rate on the morphology of mesoporous silicas templated from the pluronic triblock copolymer aggregates, and the formation of closed pores in the mesoscopic structure of the silica.
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ISSN:0022-2461
1573-4803
DOI:10.1023/b:jmsc.0000031492.71835.2b