DIPHENYLDIETHOXYSILANE

CAS: 2553-19-7

Rif. 3H-SID4525.0

Informazioni sul prodotto

• Nome: DIPHENYLDIETHOXYSILANE
• Marchio: Gelest
• Descrizione: Arylsilane Cross-Coupling AgentThe cross-coupling reaction is a highly useful methodology for the formation of carbon-carbon bonds. It involves two reagents, with one typically being a suitable organometallic reagent - the nucleophile - and the other a suitable organic substrate, normally an unsaturated halide, tosylate or similar - the electrophile.Aromatic Silane - Conventional Surface BondingAliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.Diphenyldiethoxysilane; Diethoxydiphenylsilane; 1,1'-(Diethoxysilylene)bis-benzeneVapor pressure, 125 °: 2 mmAlternative to phenyltriethoxysilane for the cross-coupling of a phenyl groupProvides hydrophobic coatings with good thermal and UV resistanceDialkoxy silane

Proprietà chimiche

• Peso molecolare: 272.42
• Formula: C₁₆H₂₀O₂Si
• Purezza: 97%
• Colore/Forma: Straw Liquid