In the intricate landscape of chemical manufacturing, certain intermediates stand out for their pivotal role in creating advanced materials. VINYLPHENYLDICHLOROSILANE, identified by its CAS number 7719-02-0, is a prime example within the organosilicon family. This compound's unique chemical architecture makes it a versatile building block, essential for a multitude of applications ranging from high-performance polymers to specialized surface treatments. For researchers and procurement specialists, understanding its properties, synthesis, and reliable supply channels is paramount.

VINYLPHENYLDICHLOROSILANE is defined by its molecular structure, which features a silicon atom bonded to a phenyl group, a vinyl group (C=CH2), and two reactive chlorine atoms. Typically supplied at a purity of 95%, it presents as a clear liquid. Its key physical properties include a low melting point of -43°C and a boiling point of 84-87°C at 1.5 mm Hg. The density is approximately 1.196 g/mL. The Si-Cl bonds are highly susceptible to hydrolysis, reacting readily with moisture to form hydrochloric acid and silanol species. This reactivity is precisely what makes VINYLPHENYLDICHLOROSILANE a valuable intermediate. The chlorine atoms can be readily displaced by nucleophiles, facilitating the introduction of various organic groups or the formation of siloxane bonds. Concurrently, the vinyl group is capable of undergoing addition reactions, such as hydrosilylation, and free-radical polymerization, enabling its integration into polymer chains.

The synthesis of VINYLPHENYLDICHLOROSILANE typically involves reactions between phenyl-substituted precursors and chlorinating agents, or through hydrosilylation followed by chlorination. The precise manufacturing process influences the final purity and byproduct profile. For end-users looking to buy VINYLPHENYLDICHLOROSILANE, understanding these synthetic routes can provide insight into product quality and potential impurities.

The applications of VINYLPHENYLDICHLOROSILANE are broad and impactful. In polymer synthesis, it acts as a monomer or co-monomer to produce silicone polymers with enhanced thermal and mechanical properties due to the phenyl substituent. These modified silicones are crucial for applications requiring high performance, such as in advanced coatings, sealants, and elastomers. Furthermore, it serves as a key intermediate in the production of silane coupling agents, which are vital for enhancing the adhesion and mechanical properties of composite materials by bridging organic polymer phases with inorganic fillers. Its role in surface modification is also significant, where it can be used to alter the surface energy, reactivity, or compatibility of various substrates.

For procurement managers and purchasing departments, identifying reliable manufacturers and suppliers is essential. Companies specializing in organosilicon chemistry, particularly those located in China, often provide high-quality VINYLPHENYLDICHLOROSILANE at competitive prices. When considering a purchase, it is recommended to obtain comprehensive quotations and compare the VINYLPHENYLDICHLOROSILANE price based on volume and purity requirements. A stable supply chain from a trusted vendor is critical for ensuring consistent production and research outcomes.

In summary, VINYLPHENYLDICHLOROSILANE (CAS 7719-02-0) is a fundamental intermediate in organosilicon chemistry. Its versatile reactivity and the properties it imparts to derived materials make it indispensable in the development of advanced polymers and surface treatments. By understanding its chemical characteristics and engaging with dependable suppliers, industries can effectively harness its potential for innovation.