Description

2-[Methoxy(Polyethyleneoxy)Propyl]Trichlorosilane is a specialized organosilicon compound featuring a reactive trichlorosilane head group and a hydrophilic poly(ethylene glycol) methyl ether (PEG) tail. This unique bifunctional structure makes it an essential coupling agent for creating stable, covalently bonded interfaces between inorganic surfaces and organic polymers. It is particularly valuable for industries requiring durable surface modifications with controlled hydrophilicity and reactivity. Key users include manufacturers of advanced materials, specialty coatings, and biocompatible medical devices.

Application

• Surface Modification Agent: Used to functionalize glass, silica, metals, and other inorganic oxides to impart permanent hydrophilic and anti-fogging properties.
• Adhesion Promoter: Enhances the bonding between organic polymer matrices (e.g., epoxies, polyurethanes) and inorganic fillers or substrates in composite materials.
• Biomedical Device Coating: Applied to create biocompatible, protein-resistant surfaces on medical implants and diagnostic equipment to reduce biofouling.
• Chromatography Stationary Phase: Serves as a derivatization reagent to prepare hydrophilic interaction liquid chromatography (HILIC) columns for analytical separations.
• Nanoparticle Functionalization: Used to cap and stabilize metal or metal oxide nanoparticles (e.g., SiO2, TiO2) for dispersion in aqueous or polar organic media.
• Textile and Fiber Treatment: Imparts durable hydrophilic and antistatic finishes to synthetic fibers and fabrics.
• Release Coating Intermediate: Acts as a key intermediate in the synthesis of silicone-based release liners for labels and adhesive tapes.

Basic Information

Product Name	2-[Methoxy(Polyethyleneoxy)Propyl]Trichlorosilane
CAS No.	36493-41-1
Molecular Formula	CnH2n+1O(C2H4O)mC3H6SiCl3 (variable m)
Molecular Weight	Variable (depends on PEG chain length, m)
Synonyms	(3-(2-(2-Methoxyethoxy)ethoxy)propyl)trichlorosilane; Poly(ethylene glycol) methyl ether trichlorosilane; PEG-silane; Methoxy-PEG-trichlorosilane; Trichloro[3-(2-(2-methoxyethoxy)ethoxy)propyl]silane; Silane, trichloro[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]propyl]-; Hydrophilic trichlorosilane
EINECS	Contact for details

Quality Control

Our production of 2-[Methoxy(Polyethyleneoxy)Propyl]Trichlorosilane adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in purity, molecular weight distribution (for the PEG chain), and functional group integrity. Certificates of Analysis (COA) detailing key parameters such as assay (by titration or NMR), chloride content, and water content are provided with every shipment. We support custom synthesis and can tailor specifications to meet specific application requirements under cGMP or ISO 9001 frameworks as needed.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (argon or nitrogen) in a cool, dry place. Recommended storage temperature is 2-8°C. Allow the container to reach room temperature before opening to prevent moisture condensation. Use appropriate ventilation and handling procedures in a dedicated chemical fume hood.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (SiCl3 content)	≥ 95.0%
Active Content	≥ 90%
Water Content (Karl Fischer)	≤ 0.5%
Average Molecular Weight (n)	As per order (e.g., n=3, 4, 9, etc.)
Chloride Content	Reported on COA

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.