History and Classification of Non-Siliceous Hybrid Materials - Mesoporous Organic-Inorganic Non-Siliceous Hybrid Materials - page 12

markets. From the academic and industrial point of view, the increasing impact of
hybrid materials science can be summarized following the arborescent representa-
tion (Fig. 2.4 ). New systems should be aimed at high levels of sophistication and
miniaturisation, recyclability, eco-friendliness, and cost efficiency.
Recently, the research focus has been turned toward metal phosphonates, sul-
fonates, and carboxylates. A diversity of organophosphonic, organosulfonic, and
organocarboxylic acids and corresponding derivatives (i.e., salts and esters) has
been discovered in nature. Judicious design of the organic bridging groups can
introduce desirable properties into the hybrid frameworks. The different reactivity
of coupling molecules leads to structural diversity and physicochemical peculiari-
ties of the resultant hybrid materials and may provide decisive advantages in the
Fig. 2.4 Arborescence representation of hybrid materials. Reprinted with permission from Ref.
[ 11 ]. Copyright 2011, Royal Society of Chemistry