POSS-Based PolymersIgnazio Blanco The combination of functional polymers with inorganic nanostructured compounds has become a major area of research and technological development owing to the remarkable properties and multifunctionalities deriving from their nano and hybrid structures. In this context, polyhedral oligomeric silsesquioxanes (POSSs) have increasing importance and a dominant position with respect to the reinforcement of polymeric materials. Although POSSs were first described in 1946 by Scott, these materials, however, have not immediately been successful if we consider that, starting from 1946 and up to 1995, we find in the literature 85 manuscripts regarding POSSs; which means that less than two papers per year were published over 50 years. Since 1995, we observe an exponential growth of scientific manuscripts concerning POSSs. It is changing from an annual average of 20 manuscripts for the period 1995–2000 to an annual average of about 400 manuscripts, with an increase of 2800%. The introduction of POSSs inorganic nanostructures into polymers gives rise to polymer nanostructured materials (PNMs) with interesting mechanical and physical properties, thus representing a radical alternative to the traditional filled polymers or polymer compositions. |
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absorption addition aggregation amount analysis APIBPOSS applications authors behavior blends bond cage carbon characterization Chem chemical chemistry China compared composites compounds concentration containing copolymers core corresponding CrossRef curves decreased degradation derivatives determined dispersion effect emission enhanced epoxy exhibited Figure filler flame retardancy foams formation functional gels groups heat higher hybrid images improved incorporation increased indicating leading loss lower materials matrix measured mechanical mechanical properties mesoporous method modified modulus molecular molecules monomer morphology nanocomposites nanoparticles neat nitrogen Oa-POSS observed obtained organic particles peaks performed polyhedral oligomeric silsesquioxane polymer polymerization polyurethane POSS prepared presented properties range reaction reported resin respectively samples showed shown in Figure silicon solid solution spectra strength structure substituents surface Synthesis Table temperature thermal stability units values Wang weight yield Zhang