[PERFLUORO(POLYPROPYLENEOXY)]METHOXYPROPYLTRIMETHOXYSILANE, 20% in fluorinated hydrocarbon

CAS: 870998-78-0

Ref. 3H-SIP6720.72

Product Information

• Name: [PERFLUORO(POLYPROPYLENEOXY)]METHOXYPROPYLTRIMETHOXYSILANE, 20% in fluorinated hydrocarbon
• Brand: Gelest
• Description: Fluoroalkyl 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.[Perfluoro(polypropyleneoxy)]methoxypropyltrimethoxysilane; (1H,1H,2H,2H-Perfluorodecyl)trimethoxysilane; HeptadecafluorodecyltrimethoxysilaneContact angle, water: 112 ° 20% in fluorinated hydrocarbonTrialkoxy silane

Chemical properties

• Molecular weight: 4000-8000
• Formula: CF₃CF₂CF₂O(CF₂CF₂CF₂O)nCH₂OCH₂CH₂CH₂Si(OCH₃)₃
• Color/Form: Colorless To Light Yellow Liquid