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• Material Chemicals Electrical Materials

Vinyltrimethoxysilane (CAS No. 2768-02-7): An Overview of Its Properties, Applications, and Recent Research

Vinyltrimethoxysilane (CAS No. 2768-02-7) is a versatile organosilicon compound that has gained significant attention in various fields, including materials science, chemical engineering, and pharmaceutical research. This compound is characterized by its unique combination of vinyl and trialkoxy functionalities, which endow it with a wide range of applications. In this article, we will delve into the properties, applications, and recent research advancements of Vinyltrimethoxysilane.

Chemical Structure and Properties

Vinyltrimethoxysilane (VTMS) has the chemical formula CH₂=CHSi(OCH₃)₃. The presence of the vinyl group (CH₂=CH-) and the three methoxy groups (OCH₃) on the silicon atom imparts several key properties to this compound. The vinyl group provides reactivity for polymerization reactions, while the methoxy groups can undergo hydrolysis to form silanol groups (Si-OH), which can further condense to form siloxane bonds (Si-O-Si). This dual functionality makes VTMS an excellent coupling agent and cross-linking agent in various materials.

The molecular weight of Vinyltrimethoxysilane is approximately 136.19 g/mol. It is a colorless liquid with a boiling point of around 115°C at atmospheric pressure. VTMS is soluble in common organic solvents such as ethanol, acetone, and toluene but is not soluble in water. Its low viscosity and good thermal stability make it suitable for a wide range of industrial processes.

Applications in Materials Science

Vinyltrimethoxysilane is widely used as a coupling agent in composite materials to improve the adhesion between organic polymers and inorganic fillers. By forming covalent bonds with both the polymer matrix and the filler surface, VTMS enhances the mechanical properties, thermal stability, and chemical resistance of the composite. This makes it particularly useful in applications such as reinforced plastics, rubber compounds, and coatings.

In the field of adhesives and sealants, Vinyltrimethoxysilane serves as a cross-linking agent to improve the durability and performance of these materials. It can be used to modify epoxy resins, polyurethanes, and acrylics, enhancing their adhesion to various substrates and improving their resistance to environmental factors such as moisture and UV radiation.

Vinyltrimethoxysilane also finds application in the production of silica-based materials. When hydrolyzed and condensed, VTMS forms a network of siloxane bonds that can be used to create silica gels, sol-gel coatings, and other functional materials with tailored properties. These materials have applications in areas such as catalysis, drug delivery, and environmental remediation.

Pharmaceutical Applications

In pharmaceutical research, Vinyltrimethoxysilane has been explored for its potential use in drug delivery systems. The ability to form stable silica nanoparticles through sol-gel processes makes VTMS an attractive candidate for encapsulating drugs and improving their bioavailability. Recent studies have shown that silica nanoparticles derived from VTMS can be functionalized with various ligands to target specific cells or tissues, enhancing the therapeutic efficacy of drugs while reducing side effects.

Vinyltrimethoxysilane-based materials have also been investigated for their use in controlled release systems. By adjusting the composition and structure of the silica matrix, researchers can control the rate at which drugs are released from the nanoparticles. This controlled release can be particularly beneficial for drugs that require sustained or targeted delivery over extended periods.

Recent Research Advancements

The versatility of Vinyltrimethoxysilane has led to numerous recent research advancements across multiple fields. In materials science, researchers have developed novel composite materials using VTMS as a coupling agent to achieve unprecedented mechanical properties. For example, a study published in the Journal of Materials Chemistry A demonstrated that incorporating VTMS into epoxy composites significantly improved their tensile strength and fracture toughness.

In pharmaceutical research, recent studies have focused on optimizing the synthesis methods for silica nanoparticles derived from VTMS to enhance their biocompatibility and drug loading capacity. A study published in ACS Nano reported a new method for synthesizing highly uniform silica nanoparticles using VTMS as a precursor. These nanoparticles exhibited excellent biocompatibility and were able to efficiently encapsulate hydrophobic drugs with high loading efficiency.

In environmental science, researchers have explored the use of VTMS-based materials for water purification applications. A study published in Environmental Science & Technology showed that silica aerogels prepared from VTMS exhibited high adsorption capacities for heavy metal ions such as lead and mercury. These aerogels could be regenerated through simple washing processes, making them suitable for repeated use in water treatment systems.

Safety Considerations

While Vinyltrimethoxysilane offers numerous benefits across various applications, it is important to handle this compound with care due to its reactivity with moisture. Proper storage conditions should be maintained to prevent hydrolysis reactions that can lead to gel formation or other undesirable side products. Additionally, appropriate personal protective equipment (PPE) should be used when handling VTMS to avoid skin contact or inhalation.

In conclusion, Vinyltrimethoxysilane (CAS No. 2768-02-7) is a multifunctional organosilicon compound with a wide range of applications in materials science, pharmaceutical research, and environmental science. Its unique chemical structure allows it to serve as an effective coupling agent, cross-linking agent, and precursor for advanced materials such as silica nanoparticles. Recent research advancements have further expanded its potential uses, making it an essential component in various industrial processes.

• 113883-62-8(Graft L 416)
• 29434-25-1(VINYLETHOXYSILOXANE HOMOPOLYMER)
• 237055-93-5(Cyclotetrasiloxane,2,4,6,8-tetramethyl-, reaction products with ethenyltrimethoxysilane and2-[(2-propen-1-yloxy)methyl]oxirane)
• 54908-31-5(2,7-DIOXA-3,6-DISILAOCT-4-ENE, 3,3,6,6-TETRAMETHOXY-, (E)-)
• 29503-87-5(Silane,ethenyltriethoxy-,polymerwithethene)
• 10576-17-7(Silane, ethenylethoxydimethoxy-)
• 107240-65-3(Linklon XPM 800HM)
• 91458-97-8(2,7-Dioxa-3,6-disilaoct-4-ene, 3,3,6,6-tetramethoxy-, (Z)-)
• 87562-54-7(Silane, ethenyldimethoxy-)
• 18236-41-4