Description

1,1,3,3-Tetravinyldimethyldisiloxane is a highly reactive organosilicon compound featuring multiple vinyl functional groups. This unique structure makes it a valuable cross-linking agent and reactive intermediate in the synthesis of specialty silicone polymers and resins. It is primarily used by manufacturers in the silicone, electronics, and advanced materials industries seeking to enhance thermal stability, flexibility, and adhesion properties in their final products.

Application

• Cross-linking agent in the production of addition-cure silicone rubbers, gels, and resins.
• Key monomer for synthesizing vinyl-functional silicone fluids, oils, and modified siloxane copolymers.
• Reactive intermediate in hydrosilylation reactions to create custom organosilicon compounds.
• Surface modifier for inorganic fillers and nanoparticles to improve compatibility in polymer composites.
• Component in the formulation of release coatings, adhesives, and encapsulants.
• Precursor for silicone-based dielectric materials and protective coatings in electronics.

Basic Information

Product Name	1,1,3,3-Tetravinyldimethyldisiloxane
CAS No.	16045-78-6
Molecular Formula	C10H18OSi2
Molecular Weight	198.42 g/mol
Synonyms	1,3-Divinyl-1,1,3,3-tetramethyldisiloxane; Tetravinyldimethyldisiloxane; Divinyltetramethyldisiloxane; Bis(vinyl-dimethylsiloxy)methane; Vinyl-terminated dimethylsiloxane dimer; TVDMD; 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
EINECS	240-179-7

Quality Control

Our 1,1,3,3-Tetravinyldimethyldisiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC), to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and specific impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and potential concentration changes. Recommended storage temperature is 2-25°C. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.420 - 1.430
Density (20°C)	0.85 - 0.90 g/mL

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