Description

Chlorodimethylvinylsilane is a highly reactive organosilicon monomer featuring both a vinyl group and a chlorosilane functionality. This dual reactivity makes it a crucial building block for introducing vinyl groups into silicone polymers and for creating silane coupling agents. It is essential for manufacturers requiring precise modification of material surfaces and polymer backbones to achieve specific properties like adhesion, hydrophobicity, or crosslinking. Key industries that utilize this compound include specialty silicones, advanced composites, and electronics.

Application

• Silicone Polymer Synthesis: A key monomer for the production of vinyl-functional silicone fluids, resins, and elastomers (e.g., HCR, LSR, RTV).
• Silane Coupling Agent Precursor: Used to manufacture vinylsilane coupling agents for enhancing adhesion between inorganic fillers (glass, minerals) and organic polymer matrices.
• Surface Modification: Imparts hydrophobic and oleophobic properties to surfaces of glass, metals, and ceramics for protective coatings.
• Crosslinking Agent: Serves as a crosslinker in peroxide-cured silicone rubber systems, contributing to the formation of durable elastomeric networks.
• Adhesion Promoter: Incorporated into primers and adhesive formulations to improve bonding to difficult substrates.
• Organic Synthesis Intermediate: Used in hydrosilylation reactions and as a versatile reagent for introducing the dimethylvinylsilyl group into organic molecules.

Basic Information

Item	Details
Product Name	Chlorodimethylvinylsilane
CAS No.	1719-58-0
Molecular Formula	C4H9ClSi
Molecular Weight	120.65 g/mol
Synonyms	Dimethylvinylchlorosilane; Vinylchlorodimethylsilane; Dimethylvinylsilyl chloride; (Chlorodimethylsilyl)ethylene; Vinyldimethylchlorosilane; 1-Chloro-1-dimethylsilylethylene; (Dimethylchlorosilyl)ethylene; Chloro(dimethyl)vinylsilane
EINECS	217-008-6

Quality Control

Our Chlorodimethylvinylsilane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity verification, to ensure it meets exacting industry standards. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications for purity, color, and moisture content.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and moisture-sensitive nature, containers should be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Density (at 25°C)	0.88 - 0.90 g/mL
Refractive Index (n20D)	1.410 - 1.415
Boiling Point	91 - 93 °C

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