Description

Diethoxy(Methyl)Vinylsilane is a versatile organosilicon compound characterized by its vinyl and alkoxysilane functional groups, making it a key reactive intermediate in advanced material synthesis. Its primary value lies in its ability to act as a coupling agent and a precursor for silicone polymers and surface modifications, offering enhanced adhesion, cross-linking, and hydrophobicity. This product is essential for manufacturers in the silicone elastomer, adhesive, sealant, and specialty coating industries seeking to improve material performance and durability.

Application

• As a cross-linking agent and chain extender in the production of high-performance silicone rubbers and RTV (Room Temperature Vulcanizing) sealants.
• As a key surface modification agent for inorganic fillers (e.g., silica, glass) to improve their compatibility and dispersion in polymer matrices.
• As a coupling agent in adhesive formulations to enhance bond strength between organic polymers and inorganic substrates.
• As a precursor in sol-gel processes for manufacturing hybrid organic-inorganic materials and protective coatings.
• In the synthesis of specialty silicone resins and modified siloxanes with tailored properties for release coatings and hydrophobic surfaces.
• For fiber treatment in composite materials to improve the interfacial adhesion between fibers and the resin.

Basic Information

Product Name	Diethoxy(Methyl)Vinylsilane
CAS No.	5507-44-8
Molecular Formula	C7H16O2Si
Molecular Weight	160.29 g/mol
Synonyms	Vinylmethyldiethoxysilane; Methylvinyldiethoxysilane; Diethoxy(methyl)vinylsilane; (Diethoxymethylsilyl)ethylene; Diethoxy(methylvinyl)silane; Vinylmethyldiethoxysilane; Ethenyl-methyl-diethoxysilane; 1,1-Diethoxy-1-methyl-1-silacyclopent-3-ene (related structure)
EINECS	226-848-3

Quality Control

Our Diethoxy(Methyl)Vinylsilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) for assay and impurity profiling, to meet precise customer specifications. A detailed Certificate of Analysis (COA) documenting identity, purity, and physical properties is provided with every shipment.

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 (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (20°C)	0.88 - 0.90 g/mL
Refractive Index (n20D)	1.405 - 1.415
Water Content (Karl Fischer)	≤ 0.1%

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