n-OCTADECYLDIMETHYLCHLOROSILANE, 97%

CAS: 18643-08-8

Rif. 3H-SIO6615.1

Informazioni sul prodotto

• Nome: n-OCTADECYLDIMETHYLCHLOROSILANE, 97%
• Sinonimi: DIMETHYL-n-OCTADECYLCHLOROSILANE
• Marchio: Gelest
• Descrizione: Alkyl 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.n-Octadecyldimethylchlorosilane; Dimethyl-n-octadecylchlorosilane; Chlorodimethyloctadecylsilane; Chlorodimethylsilyl-n-octadecaneContains <5% C18 isomersEmployed in bonded HPLC reverse phases

Proprietà chimiche

• Peso molecolare: 347.1
• Formula: C₂₀H₄₃ClSi
• Purezza: 97% including isomers
• Colore/Forma: Off-White Solid