For research and development professionals in the chemical industry, a thorough understanding of a compound's chemical properties is the bedrock of successful innovation. Vinyl Tris(dimethylsiloxy)silane (CAS 160172-46-3) is a specialty organosilicon compound that offers a rich landscape for exploration due to its unique structural features and reactivity. This article aims to provide R&D scientists and product developers with an in-depth look at its chemical properties and potential research avenues.

Molecular Structure and Reactivity Insights

Vinyl Tris(dimethylsiloxy)silane possesses a molecular formula of C8H24O3Si4, with a molecular weight typically around 280.62 g/mol. The central silicon atom is tetravalent, bonded to a vinyl group (CH=CH₂) and three dimethylsiloxy (–OSi(CH₃)₃) groups. This arrangement confers several key reactivity characteristics:

  • Vinyl Group Reactivity: The carbon-carbon double bond in the vinyl group is susceptible to various reactions. It can undergo free-radical polymerization, addition reactions (e.g., hydrosilylation, halogenation), and participate in metathesis reactions. This makes it an excellent candidate for grafting or co-polymerization into organic or siloxane matrices.
  • Siloxane Linkages (Si-O-Si): The siloxane bonds are known for their inherent stability, particularly against heat and oxidation. However, under specific acidic or basic conditions, these bonds can undergo hydrolysis and condensation, which is often utilized in silicone polymer formation. The steric bulk of the dimethylsiloxy groups can influence the rate and mechanism of these reactions.
  • Si-C Bond: The bond between silicon and the vinyl carbon is relatively strong but can be cleaved under harsh conditions. Its polarity also contributes to the overall reactivity profile of the molecule.

Understanding these aspects is crucial for researchers planning to buy this chemical for specific synthesis pathways.

Physicochemical Properties for R&D Planning

Beyond its fundamental chemical reactivity, several physicochemical properties influence its handling and application in R&D:

  • Appearance: Typically a clear, colorless liquid, facilitating visual inspection and reaction monitoring.
  • Boiling Point: Reported around 204 °C at atmospheric pressure, indicating moderate volatility. Vacuum distillation is often employed for purification.
  • Flash Point: Generally above 65 °C (though some sources cite lower values), requiring appropriate safety precautions during handling.
  • Density: Around 0.875 g/mL, which is lower than water.
  • Moisture Sensitivity: Like many silanes, it can be sensitive to moisture, particularly under acidic or basic conditions, which can lead to hydrolysis. Storing under an inert atmosphere is often recommended.

These properties are vital for researchers to consider when designing experiments, selecting equipment, and planning safety protocols when they purchase Vinyl Tris(dimethylsiloxy)silane.

Potential Research Avenues

The unique combination of properties in Vinyl Tris(dimethylsiloxy)silane opens doors for numerous research avenues, including:

  • Development of Novel Silicone Polymers: Investigating its use in controlled polymerization techniques to create silicones with tailored mechanical, thermal, or optical properties.
  • Surface Functionalization: Exploring its application in modifying surfaces for applications in catalysis, chromatography, or bio-interfaces.
  • Material Science Innovations: Utilizing it as a precursor for advanced materials such as hybrid organic-inorganic composites or functional coatings.
  • Cross-linking Agents: Studying its efficacy as a cross-linker in various resin systems to improve their performance characteristics.

For scientists looking to purchase this compound, partnering with a reputable manufacturer and supplier that can provide consistent quality and comprehensive technical data is essential for successful R&D outcomes.

In summary, Vinyl Tris(dimethylsiloxy)silane (CAS 160172-46-3) is a valuable chemical entity for R&D. A deep understanding of its chemical properties allows researchers to unlock its full potential in developing innovative materials and solutions.