Description

(1,1-Dimethylethyl)Dimethoxymethyl-Silane is a highly versatile organosilicon compound, specifically a tert-butyl-substituted alkoxysilane. Its value lies in its dual functionality, serving as a key building block and surface modifying agent in advanced material synthesis. This chemical is essential for manufacturers in the silicone polymers, specialty coatings, and electronics industries, where precise molecular control over material properties is required. Its structure offers a unique balance of reactivity and steric bulk for tailored applications.

Application

• Precursor for Silicone Resins and Elastomers: Used as a co-monomer to introduce tert-butyl groups, enhancing thermal stability and modifying the physical properties of silicone networks.
• Surface Modification and Coupling Agent: Functionalizes inorganic surfaces (e.g., silica, metals) to improve adhesion, dispersion, and compatibility with organic matrices in composite materials.
• Protective Group in Organic Synthesis: The tert-butyldimethoxysilyl group acts as a robust protecting group for alcohols and other sensitive functionalities during complex multi-step syntheses.
• Electronics and Semiconductor Manufacturing: Employed in the deposition of silicon-containing thin films and as a precursor for low-k dielectric materials via chemical vapor deposition (CVD) or spin-on processes.
• Hydrophobic Coatings: Imparts water-repellent characteristics to surfaces in construction materials, textiles, and optical components.
• Adhesive and Sealant Formulations: Enhances cross-linking density and environmental resistance in high-performance silicone-based adhesives and sealants.

Basic Information

Product Name	(1,1-Dimethylethyl)Dimethoxymethyl-Silane
CAS No.	18293-81-7
Molecular Formula	C7H18O2Si
Molecular Weight	162.30 g/mol
Synonyms	tert-Butyl(dimethoxy)methylsilane; tert-Butyldimethoxymethylsilane; Methyl(tert-butyl)dimethoxysilane; Dimethoxy(tert-butyl)methylsilane; tert-Butylmethyl-dimethoxysilane; (tert-Butyl)methyldimethoxysilane; t-Butyldimethoxymethylsilane; Silane, dimethoxy(1,1-dimethylethyl)methyl-
EINECS	Contact for details

Quality Control

Our (1,1-Dimethylethyl)Dimethoxymethyl-Silane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates and reliable performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. Recommended storage temperature is 2-25°C. Keep away from moisture, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.400 - 1.410
Density (20°C)	0.85 - 0.90 g/mL

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