SIL-PEG-SIL

Description

PEG silane, is a linear polyethylene glycol chain with a silane group at each end of a PEG chain. PEG is a hydrophilic polymer known for its water solubility and biocompatibility, Silane PEG is a surface reactive product used to modify and deactivate glass, silica, metal, ceramics and hydroxylated surfaces and particles.

Structure and Properties:

• PEG silane consists of a PEG chain attached to a silane group, which is usually a trimethoxysilane or triethoxysilane.
• They exhibit excellent adhesion properties to various substrates.

Uses and Applications:

• Surface modification: PEG silanes are widely used to modify the surface properties of materials, making them more hydrophilic, biocompatible, or resistant to fouling.
• Coatings: They can be used to create coatings with enhanced water repellency, antifouling, and anti-corrosion properties.
• Biomaterials: PEG silanes are employed in the development of biomaterials for medical implants, tissue engineering, and drug delivery.
• Sensors: They are used in the fabrication of sensors for detecting various analytes, including biological molecules and chemicals.
• Chromatography: PEG silanes are used as stationary phases in chromatography to separate and analyze compounds.

Reaction Conditions:

• pH: The pH of the reaction medium can significantly influence the reactivity of PEG silanes. The optimal pH range for hydrolysis and condensation reactions is typically between 2 and 7.
• Temperature: The reaction temperature can affect the rate of hydrolysis and condensation. Higher temperatures generally accelerate the reaction.
• Solvent: PEG products in all molecular weights are soluble at concentrations less than a 50:50 w/w concentration in water and other solvents.

         PEGs are readily soluble in dichloromethane, chloroform, acetonitrile and water at room temperature.

         PEGs require heat to be soluble in toluene, methanol, ethanol, and isopropanol.

         PEGs are not soluble in ethers, ethylene glycol, hexane, and are not soluble in most alcohols at room temperature.

• Catalyst: Catalysts, such as acidic or basic catalysts, can be used to accelerate the hydrolysis and condensation reactions.