CAS 69733-73-9

3-Phenoxypropyldimethylchlorosilane

Description:

3-Phenoxypropyldimethylchlorosilane is an organosilicon compound characterized by the presence of a chlorosilane functional group, which includes a silicon atom bonded to two methyl groups, a phenoxy group, and a propyl chain. This compound typically appears as a colorless to pale yellow liquid and is known for its reactivity due to the chlorosilane moiety, which can undergo hydrolysis in the presence of moisture, leading to the formation of silanol groups. It is often used as a coupling agent or surface modifier in various applications, including coatings, adhesives, and sealants, due to its ability to enhance adhesion between organic and inorganic materials. The phenoxy group contributes to its compatibility with organic substrates, while the dimethyl groups provide stability and flexibility. Safety considerations include handling it in a well-ventilated area and using appropriate personal protective equipment, as it can be irritating to the skin and eyes. Overall, 3-Phenoxypropyldimethylchlorosilane is valued for its functional properties in materials science and chemical synthesis.

Formula: C₁₁H₁₇ClOSi

InChI: InChI=1/C11H17ClOSi/c1-14(2,12)10-6-9-13-11-7-4-3-5-8-11/h3-5,7-8H,6,9-10H2,1-2H3

SMILES: C[Si](C)(CCCOc1ccccc1)Cl

Synonyms:

• Chloro(Dimethyl)(3-Phenoxypropyl)Silane
• Chlordimethyl-(3-Phenoxy)propylsilane
• Benzene, [3-(chlorodimethylsilyl)propoxy]-
• 3-PHENOXYPROPYLDIMETHYLCHLOROSILANE

3-PHENOXYPROPYLDIMETHYLCHLOROSILANE

CAS: 69733-73-9

Aromatic Silane - Conventional Surface Bonding
Aliphatic, 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.
3-Phenoxypropyldimethylchlorosilane; (3-Dimethylchlorosilylpropoxy)benzene

Formula: C₁₁H₁₇ClOSi

Purity: 97%

Color and Shape: Pale Yellow Liquid

Molecular weight: 228.78

Ref: 3H-SIP6723.2