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The most important characteristics of the rice husk is a high silicon content, can effectively use the rice husk to prepare high value-added silicon organic chemicals, only broadens the scope of application of the rice husk, to solve the problem of non carbothermal synthesis of raw materials, but also solve the rice husk pollution of the environment, will bring enormous economic and social benefits. The polyhedral oligomeric silsesquioxane (Polyhedral oligomeric Silsesquioxanes, referred POSS), is a kind of simplified structure (RSiO1.5) n (referred to as Tn) silicon organic chemicals are organic - inorganic hybrid materials. Its special composition, it has the a good modified and functionalized effect of, followed by functionalized micro-composition, but also make the macroscopic properties of synthetic materials have expected. This paper mainly studies of rice husk ash as the base material preparation cage silsesquioxane, or octamer (tetramethylammonium) silicate, and on this basis functionalized prepared with different activity or special groups of organic - inorganic hybrid materials POSS structural unit. The prepared six functionalized POSS structural unit: eight poly (tetramethyl) ammonium silicate (POSS-1), vinyl functionalized POSS (POSS-2), a styrene - vinyl functionalized POSS -1 (POSS-3), divinyl benzene - vinyl functionalized POSS-1 (POSS-4), allyl glycidyl ether - vinyl functionalized POSS-1 (POSS-5) and polyfluoro - vinyl functionalized POSS-1 (POSS-6). For the synthesis of the six-functionalized POSS structure of the structural unit of the following characterization methods: Infrared Spectroscopy (FTIR) analysis, nuclear magnetic resonance spectroscopy (NMR), mass spectrometry (UV-MALDI-TOF MS) analysis, scanning electron microscopy ( SEM) of the surface morphology, chemical kinetics (reaction rate), quantum chemical calculations (total energy - stability) characterization, largely confirmed the composition of the synthetic product structure is reasonable. Organic - inorganic hybrid nanomaterials synthesis of structural units of six functionalized POSS heat resistance and mechanical properties of the contrast characterization (TGA, DSC, tensile properties, etc.). The results show that the hybrid material synthesized by functionalizing the structural unit reflects the good thermal and mechanical properties, which is due to the reason for the existence of its special structure and rigid phenyl. In this paper, the partially functionalized synthetic route and characterization methods (chemical kinetics analysis, quantum chemical calculations characterization), to study the structure and properties of organic - inorganic hybrid materials, to provide some reference value.
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