Nanocomposites of Polyhedral Oligomeric Silsesquioxane (POSS) and Their Applications

Silsesquioxane organofunctionalized with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole: Preparation and subsequent reaction with silver and potassium hexacyanoferrate(III) for detection of l-cysteine

“…POSSs are known as hybrid organic-inorganic nanocomposites -the inorganic core provides stability to the molecule and organic arms can establish its specific properties [7][8][9][10][11]. In particular, due to the highly symmetrical three-dimensional nature of their nucleus, POSSs are good precursors for the production of hybrid organic-inorganic materials [6,12] and these nanomaterials have recently shown great or advantageous functional properties for a wide range of technological applications, such as dendritic precursors [13][14][15][16], polymer precursors [17,18], as precursors for developing liquid crystals [19,20], homogeneous and heterogeneous catalysis [21,22], electroactive films [23], additives [24,25], antibacterial [26], and also used in thin films and coatings for various applications, including nanocomposites [10,11,27]. Thus, silsesquioxanes containing the chlorine element at their ends, such as octakis(3-chloropropyl)octasilsesquioxane, can be easily modified by the organic/inorganic process.…”

Synthesis and characterization of a novel polyhedral oligomeric silsesquioxanes containing phosphorus and boron

“…POSS has a nanosized, cage-shaped and three-dimensional structure, which can be represented by the formula R n (SiO 1.5 ) n , where n (n≥6) is the number of silicon atoms and R is a hydrogen atom or an organic functional group including alkyl, alkylene, aryl, arylene, or epoxide unit [5][6][7][8][9][10] . In this special structure, the (SiO 1.5 ) n is an inorganic core, which can serve to provide molecular reinforcement, and the attaching organic groups (R n ) on the inorganic core can serve to improve compatibility with polymer matrix.…”

vQRS Based on Hybrids of CNT with PMMA-POSS and PS-POSS Copolymers to Reach the Sub-PPM Detection of Ammonia and Formaldehyde at Room Temperature Despite Moisture

“…POSS is a molecule of generic formula Si n O 1.5n composed of eight silicon atoms forming a cage of 0.53 nm diameter [53]. The functionality and size of the groups attached to Si atoms can be varied according to the required applications (copolymerization and blending) [54,55]. In particular, various types of organic chains can be attached to the POSS cage, which can modify its solubility in different polymers, providing a better dispersion in the matrix [56].…”