Jd. Lichtenhan, POLYHEDRAL OLIGOMERIC SILSESQUIOXANES - BUILDING-BLOCKS FOR SILSESQUIOXANE-BASED POLYMERS AND HYBRID MATERIALS, Comments on modern chemistry. Part A, Comments on inorganic chemistry, 17(2), 1995, pp. 115-130
General methods are described for the preparation of discrete polyhedr
al oligomeric silsesquioxane (POSS) macromers and for their incorporat
ion into linear polymeric systems. Depending on the type of functional
ity contained on the POSS macromer, macromolecular systems can be cons
tructed with POSS units as either main chain (bead), side chain (penda
nt), or chain terminus groups. The preparation and polymerization chem
istry for bead and pendant POSS macromers are described. The propertie
s of the resulting polymers are discussed with respect to the overall
polymer composition and architecture. Implications of the macromers as
novel polymer hard blocks, polymer additives, and as non-network hybr
id materials are discussed.