Description

Vinylmethyldimethoxysilane is a highly reactive organosilicon compound, specifically a vinyl-functional alkoxysilane. Its dual functionality makes it a crucial coupling agent and monomer for creating hybrid organic-inorganic materials. This product is essential for manufacturers in the silicone, polymer, and advanced materials industries seeking to enhance adhesion, cross-linking, and surface modification. Its reactive vinyl and methoxy groups enable versatile applications in coatings, sealants, and composite materials.

Application

• Cross-linking Agent in silicone elastomers and room-temperature vulcanizing (RTV) silicones.
• Coupling Agent for improving the adhesion of polymers to inorganic surfaces like glass, metals, and minerals.
• Surface Modification of fillers (e.g., silica, glass fibers) to improve dispersion and compatibility in polymer matrices.
• Monomer for the synthesis of specialty silicone resins and hybrid organic-inorganic copolymers.
• Adhesion Promoter in primers, paints, and coatings for demanding industrial applications.
• Intermediate in the pharmaceutical and agrochemical industries for introducing silane functionality.
• Moisture-Curing Systems as a component in sealants and encapsulants that cure upon exposure to atmospheric moisture.

Basic Information

Product Name	Vinylmethyldimethoxysilane
CAS No.	16753-62-1
Molecular Formula	C5H12O2Si
Molecular Weight	132.23 g/mol
Synonyms	Dimethoxy(methyl)vinylsilane; Methylvinyldimethoxysilane; Vinylmethoxysilane; (Methyldimethoxysilyl)ethylene; Vinylmethyl dimethoxy silane; Silane, dimethoxymethylvinyl-; 2-(Dimethoxymethylsilyl)ethylene; VMDMS
EINECS	240-816-4

Quality Control

Our Vinylmethyldimethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity verification, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting purity, assay, and key physical properties are available for every shipment upon request, providing full traceability and quality assurance for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its highly volatile and hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0 %
Density (20°C)	0.88 - 0.90 g/cm³
Refractive Index (n20/D)	1.390 - 1.395
Boiling Point	Approx. 100-102°C
Water Content (KF)	≤ 0.1 %

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