منابع مشابه
Polyhedral Liquid Crystal Silsesquioxanes
Synthetic routes towards monodisperse polyhedral liquid-crystalline silsesquioxanes are described. The liquid-crystalline phase behaviour of these structurally uniform materials, with various silsesquioxane core and mesogenic side-chain structures, were analysed and compared with those of related oligomeric and polymeric materials. Common features of the solid-state behaviour of these organic/i...
متن کاملFluorinated polyhedral oligomeric silsesquioxanes (F-POSS).
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متن کاملMaxillofacial Materials Reinforced with Various Concentrations of Polyhedral Silsesquioxanes
This study evaluates two mechanical properties, tensile strength and tear strength, of maxillofacial materials reinforced with functional polyhedral silsesquioxane (POSS) nanoparticles at 0.0, 0.5, 1.0, 2.0, and 5.0% (mass/mass) loading. Adding POSS was found to significantly affect the overall tensile strength and extensibility of the maxillofacial material. Significant differences were found ...
متن کاملPhysical Properties of Polyhedral Oligomeric Silsesquioxanes–Cycloolefin Copolymer Nanocomposites
Properties of cycloolefin copolymer (COC)– polyhedral oligomeric silsesquioxanes (POSS) nanocomposites, prepared by melt compounding, have been investigated. Composites retained the optical transparency of the matrix up to a nanofiller content of 5 wt %. whereas for higher percentages the formation of a crystalline phase, due to the presence of agglomerated nanoparticles, was revealed by X-Ray ...
متن کاملIn Vitro Studies of Polyhedral Oligo Silsesquioxanes: Evidence for Their Low Cytotoxicity
As scientific literature considers polyhedral oligosilsesquioxanes (POSS) as potential drug delivery systems, it is necessary to check their impact on mammalian cells. Toxicity of octaammonium chloride salt of octaaminopropyl polyhedral oligomeric silsesquioxane (oap-POSS) towards two cell lines: mouse neuroblastoma (N2a) and embryonic mouse hippocampal cells (mHippoE-18) was studied. Experimen...
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ژورنال
عنوان ژورنال: Applied Organometallic Chemistry
سال: 1999
ISSN: 0268-2605,1099-0739
DOI: 10.1002/(sici)1099-0739(199904)13:4<261::aid-aoc839>3.3.co;2-m