History and Classification of Non-Siliceous Hybrid Materials - Mesoporous Organic-Inorganic Non-Siliceous Hybrid Materials - page 19

Fig. 2.8 General synthetic pathway to mesoporous non-siliceous hybrid materials
condensation rates of the structurally different precursors, is a constant problem in
cocondensation because the homogeneous distribution of different organic func-
tionalities in the framework cannot be guaranteed. Furthermore, an increase in
loading of the incorporated organic groups and the complexity of organic linking
groups can lead to a deterioration of the mesoporosity including the pore diam-
eter, pore volume, and specific surface areas. Purely methodological disadvantage
that is associated with the cocondensation method is that care must be taken not to
destroy the organic functionality during the removal of the surfactant. This is why
commonly extractive methods are favorable, while calcination is not suitable in
most cases.
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