Description

Dimethyltetramethoxydisilethylene is a specialized organosilicon compound with a unique disilethylene backbone functionalized with methoxy groups. This chemical is valued for its role as a versatile precursor and cross-linking agent in advanced material synthesis, offering controlled reactivity and silicon-based functionality. It is primarily utilized by manufacturers in the silicone polymers, specialty coatings, and electronics industries seeking to enhance material properties such as thermal stability, adhesion, and dielectric performance.

Application

• Silicone Resin & Polymer Modification: Acts as a cross-linking agent or co-monomer to improve thermal stability and mechanical strength in high-performance silicones.
• Specialty Coatings & Adhesives: Used as a key ingredient to enhance surface adhesion, weather resistance, and curing properties in industrial and electronic coatings.
• Electronic Encapsulants & Underfills: Serves as a precursor in formulating silicones for protecting sensitive electronic components from moisture and mechanical stress.
• Release Agents & Molding Compounds: Imparts excellent release properties and surface finish in rubber and plastic molding processes.
• Hybrid Organic-Inorganic Materials (ORMOSILs): A fundamental building block for creating sol-gel derived materials with tailored optical, mechanical, or barrier properties.
• Surface Treatment & Coupling Agent: Modifies inorganic surfaces (e.g., glass, metals) to improve compatibility and bonding with organic polymers.

Basic Information

Product Name	Dimethyltetramethoxydisilethylene
CAS No.	98789-40-3
Molecular Formula	C8H22O4Si2
Molecular Weight	238.43 g/mol
Synonyms	1,2-Bis(dimethoxymethylsilyl)ethane; Disilethylene, dimethyltetramethoxy-; Tetramethoxydimethyldisilethylene; Dimethyl Disilethylene Tetramethyl Ether; Bis(dimethoxymethylsilyl)ethane; (Dimethoxymethylsilyl)ethane, 1,2-bis-; Organosilane Crosslinker 98789-40-3
EINECS	Contact for details

Quality Control

Every batch of Dimethyltetramethoxydisilethylene is produced and tested under a strict quality management system to ensure consistency and reliability. We provide comprehensive Certificates of Analysis (COA) that detail key parameters including purity, identity, and impurity profiles. Our quality commitment aligns with industrial best practices, and we can support compliance requirements for specific applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	~0.95 g/mL
Refractive Index (n20D)	~1.410 - 1.415
Moisture (Karl Fischer)	≤ 0.5%

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