Description

Divinyldimethylsilane is a highly reactive organosilicon monomer characterized by its vinyl functional groups. This compound is a critical building block in the synthesis of specialized silicone polymers and cross-linked networks, offering unique properties to the final materials. It is essential for manufacturers in the silicone rubber, advanced coatings, and specialty adhesives industries seeking to enhance product performance through custom molecular architecture.

Application

• Silicone Polymer Synthesis: A key monomer for producing vinyl-functional polysiloxanes and silicone resins.
• Cross-linking Agent: Used in heat-curable (HTV) and addition-cure (RTV-2) silicone rubber formulations to create durable, resilient elastomers.
• Surface Modification: Employed as a coupling agent or surface treatment to improve adhesion between organic polymers and inorganic substrates like glass or metals.
• Specialty Coatings: Imparts enhanced chemical resistance, thermal stability, and weatherability to high-performance protective and release coatings.
• Adhesives & Sealants: A reactive intermediate in formulating advanced silicone-based adhesives with superior flexibility and bond strength.
• Organic Synthesis Intermediate: Serves as a versatile reagent in hydrosilylation and other organometallic reactions for creating novel silicon-containing compounds.

Basic Information

Product Name	Divinyldimethylsilane
CAS No.	10519-87-6
Molecular Formula	C6H12Si
Molecular Weight	112.25 g/mol
Synonyms	Dimethylvinylsilane; Divinyldimethylsilane; 1,1-Dimethyl-1-sila-2,5-cyclopentadiene; Dimethylsilyleneethene; Vinyl(dimethyl)silane; (Dimethylsilyl)ethene; Divinylmethylsilane (common misnomer); Ethene, 1,1-dimethylsilylene-
EINECS	234-060-7

Quality Control

Our Divinyldimethylsilane is produced and tested under stringent quality management systems to ensure batch-to-batch consistency and reliability. Each lot is analyzed to confirm identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by GC), water content, and specific impurity limits is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and easily oxidized nature, this material should be stored under an inert atmosphere (nitrogen or argon) in a cool, well-ventilated area, away from heat and ignition sources. Recommended long-term storage temperature is 2-8°C. Keep container tightly sealed when not in use to prevent moisture ingress and evaporation.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.70 - 0.75
Refractive Index (n20D)	1.410 - 1.420

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