Polyhedral oligomeric silsesquioxanes POSS

Polyhedral oligomeric silsesquioxane (POSS)-based nanocomposites... 

Nanocomposite based on polyurethane (PU) is prepared using silica, clay, and Polyhedral Oligomeric Silsesquioxane (POSS). Preparation, characterization, mechanical and barrier properties, morphology, and effect of processing conditions have been reported on polyurethane-based nanocomposites [72,73]. 

Polyhedral oligomeric silsesquioxane (POSS) has been extensively studied as starting substrate to construct nanocomposites with precise control of nanoarchitecture and properties. Octahedral derivatives are the most representative ones of this family. It was reported that the HRP-catalyzed conjugation of catechin on amine-substituted octahedral silsesquioxane amplified the beneficial physiological property of flavonoids. The POSS-catechin conjugate exhibited great... 

M. T. Application of ion mobility to the gas-phase conformational analysis of polyhedral oligomeric silsesquioxanes (POSS). Int J Mass Spectrom 2003, 222, 63-73. 

The proposed IR assignments were supported by calculation of v(Zr-H) frequencies of computational models for the species involved in the reactions of Scheme 3.1 [16, 17] based on a polyhedral oligomeric silsesquioxane (POSS)... 

Carroll JB, Waddon AJ, Nakade H, Rotello VM. Plug and play polymers. Thermal and X-ray characterizations of noncovalently grafted polyhedral oligomeric silsesquioxane (POSS)-polystyrene nanocomposites. Macromolecules 2003 36 6289-6291. 

Fig. 7 Examples of polyhedral oligomeric silsesquioxane (POSS) nanoparticles used to induce homeotropic alignment in nematic liquid crystals...

Pielichowski, K., Njuguna, J., Janowski, B. and Pielichowski, J. Polyhedral Oligomeric Silsesquioxanes (POSS)-Containing Nanohybrid Polymers. Vol. 201, pp. 225-296. 

Mantz, R.A., Jones, P.F., Chaffee, K.P., Lichtenhan, J.D., and Gilman, J.W., Thermolysis of polyhedral oligomeric silsesquioxane (POSS) micromers and POSS-siloxane copolymers, Chem Mater. 1996, 8, 1250. 

Fina, A., Tabuani, D., Camiato, F., Frache, A., Boccaleri, E., and Camino, G. Polyhedral oligomeric silsesquioxanes (POSS) thermal degradation, Thermochim. Acta 2006,440, 36. 

The 0-d nanoparticles can be nano-metal oxides (such as silica,1 titania,2 alumina3), nano-metal carbide,4 and polyhedral oligomeric silsesquioxanes (POSS),5 to name just a few the 1-d nanofibers can be carbon nanofiber,6 and carbon nanotubes (CNT),7 which could be single-wall CNTs (SWCNT) or multiwall CNTs (MWCNT) etc. the 2-d nano-layers include, but are not limited to, layered silicates,8 layered double hydroxides (LDH),9 layered zirconium phosphate,10 and layered titanates,11 etc. 3-d nano-networks are rarely used and thus examples are not provided here. 

Joshi, M. and Butola, B. S., Polymeric nanocomposites—polyhedral oligomeric silsesquioxanes (POSS) as hybrid nanofiller, J. Macromol. Sci., Polym. Rev. (2004), C44, 389M10. 

Schwab J J, Lichtenhan J D. (1998) Polyhedral oligomeric silsesquioxane (POSS)-based polymers. Appl Organomet Chem 12 707-713. 

Polyhedral oligomeric silsesquioxanes (POSS) are known molecules having various structures [1] as seen in Fig. 1. However double-decker shaped silsesquioxane has not been obtained. POSS is an interesting class of monomers for the preparation of silicon-based polymers. In recent years, silsesquioxane-based polymers have received much attention because of their useful properties, which include heat resistance, mechanical stability, low dielectric constant, etc. [2, 3],... 

Polyhedral Oligomeric SilSesquioxane (POSS) Modified Materials... 

Polyhedral Oligomeric Silsesquioxanes (POSS)-Containing Nanohybrid Polymers... 

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