Methoxyethoxyundecyltrichlorosilane
Methoxyethoxyundecyltrichlorosilane (CAS 943349-49-3) is a specialized organosilicon compound utilized primarily as a surface modification agent and molecular linker in advanced material science. Characterized by a long eleven-carbon undecyl spacer chain, it features a terminal trichlorosilyl group and a methoxyethoxy moiety. The trichlorosilyl functionality is highly reactive toward hydroxylated surfaces, such as glass, silicon dioxide, and various metal oxides, facilitating the formation of robust, covalently bonded self-assembled monolayers (SAMs). The inclusion of the methoxyethoxy group introduces specific physicochemical properties, including enhanced wettability and potential resistance to non-specific protein adsorption compared to pure alkyl silanes. Due to its high sensitivity to moisture, which triggers the release of hydrogen chloride gas upon hydrolysis, the material must be handled under strictly anhydrous conditions using inert gas techniques. Its primary value lies in its ability to precisely tune surface energy, adhesion, and biocompatibility in research and high-tech industrial manufacturing environments.
• Surface Functionalization and SAM Formation: The primary application of this compound is the creation of highly ordered self-assembled monolayers on inorganic substrates. The trichlorosilyl head group reacts with surface silanol or hydroxyl groups to form stable siloxane bonds, allowing researchers to modify the chemical landscape of sensors, microfluidic devices, and semiconductor components at the molecular level.
• Biocompatible Coatings and Protein Resistance: The methoxyethoxy termination provides a short ethylene glycol-like segment. This makes the material particularly useful in biotechnology applications where the goal is to reduce biofouling or non-specific binding of biological molecules to surfaces. It serves as an effective interlayer for diagnostic assays and specialized medical device coatings.
• Interface Engineering in Electronics: In the fabrication of organic electronics and thin-film transistors, Methoxyethoxyundecyltrichlorosilane is employed to modify the dielectric-semiconductor interface. The long alkyl chain acts as an insulating spacer, while the polar tail helps in controlling the work function and orientation of subsequent organic layers, improving overall device performance.
• Adhesion Promotion and Chemical Tethering: It acts as a versatile coupling agent, bridging the gap between inorganic fillers or substrates and organic matrices. Its unique structure allows it to serve as a tether for further chemical synthesis, enabling the attachment of complex molecules to solid supports in catalysis or solid-phase synthesis.
Product Name: Methoxyethoxyundecyltrichlorosilane
For global customers, we provide complete technical documentation to support product evaluation, regulatory compliance and safe handling during transportation and application.