Product Name: Tetramethyl divinyl disiloxane

Product Code: NV-SIM220

Alias: Vinyl double capped end

Chemical Informations

Main Composition:1,1,3,3 tetramethyl 1,3-divinyl disiloxane

Molecular Formula: C₈H₁₈OSi₂

Molecular Structure：

Cas No.:2627-95-4

EINECS: 220-099-6

Product Description:

Chemically known as 1,3-Divinyl-1,1,3,3-tetramethyldisiloxane (often abbreviated as TMDVDS or V2), is a colorless, low-viscosity reactive liquid harboring high-purity terminal vinyl functionalities.

It serves as the definitive chain end-blocker (linear terminator) in the equilibrium polymerization of vinyl-terminated silicone fluids and addition-cure liquid silicone rubbers (LSR). It is also the vital complexing ligand utilized in synthesizing ultra-active platinum catalysts (Karstedt's Catalyst).

Typical properties:

Appearances:Colorless transparent liquid,

Refractive index:1.411-1.413

Boiling point:139-139.5℃

Density: 0.813g/ml

Melting point: -99.7℃

Flash point: 24℃

Purity≥99.0% 

Vinyl content≥28%(the quality of analytical grade)

Water solubility:insoluble

Applications:

Vinyl Fluid Molecular Tailoring: Functions as a terminal regulator to accurately control the molecular weight and cross-linking density of vinyl silicone fluids.

Platinum Catalyst Manufacture: Core precursor for stabilizing high-efficiency Karstedt platinum complexes used in hydrosilylation reactions.

Addition-Cure Formulation: Imparts crisp cross-linking parameters and enhances mechanical tearing resistance in 2-part liquid silicone systems.

Package: 160KG/DRUM