Surfactant-templated aerogels

Anderson MT, Sawyer PS, Rieker T (1998) Surfactant-templated silica aerogels. Microporous Mesoporous Mater 20 53 5... 

Table 13.1. Comparison of selected mechanical properties under quasi-static compression of polyurea-crosslinked vanadia (X-VOx) and acid-catalyzed surfactant-templated sihca aerogels (X-MP4-T310-1) with other strong materials [81-83]...

Figure 13.17. Compressive stress-strain curves of PMMA, polycarbonate, poly[vinylchloride] PVC), and polyurea-crosslinked surfactant-templated silica aerogel (X-MP4-T310 MCF type material) at high strain rates.

Yin W, Venkitachalam SM, Jarrett E, Staggs S, Leventis N, Lu H and Rubenstein DA (2010) BiocompatibUity of surfactant-templated polyurea-nanoencapsulated macroporous silica aerogels with plasma platelets and endothelial cells. J Biomed Mater Res A 92A 1431-1439... 

X-MP4-T045 Cross-linked aerogel made from a surfactant-templated polyurea-... 

Many surfactants have been used as templates for creating inter/intrac-rystalline mesoporosity in zeolites. For example, Schuth et al. synthesized mesoporous silicalite-1 zeolite by using an organic aerogel as a soft template [33]. Similarly, Xiao et al. prepared structured zeolites templated by... 

The specific surface area of the surfactant- and polymer-templated gels, that is, the ambient pressure aerogels, is nearly the same as that of the aerogels prepared by the supercritical extraction of CO2. Also, the pore size and the pore volume, that is, the porosity, are larger (twice or more) than those of the xerogels, but smaller than those of the super-critically extracted aerogels, estimated to be ca. 55%. The pore size and pore volume depended on the properties of surfactants and polymers, molecular size, and micelle- or aggregate shape. Also, the concentration of polymers in the immersion solutions, as well as the kind of template materials, affected the pore size and pore volume (Table 7.2). 

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