Abstract
A typical polyhedral oligomeric silsesquioxane (POSS) molecule possesses a cubic rigid (T8) structure represented by the formula R8Si8O12, where the central inorganic core (Si8O12) is functionalized with organic moieties (R) at each of the eight vertices. The rigid silica cube possesses high thermal and chemical stability. Moreover, since POSS molecules have a highly symmetrical and star-shaped structure, unique characteristics distinctly different from planar molecules can be expected due to such structural features. Thus, POSS molecules have attracted considerable attentions as a building block for constructing functional molecules and nanometric materials. In this chapter, the syntheses of POSS derivatives such as octaamino- and octavinyl-POSS are illustrated.
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