Description

Vinyltriisopropenoxysilane is a specialized organosilicon compound that serves as a highly effective coupling agent and crosslinking precursor. Its unique structure, featuring a vinyl group and three isopropenoxy ligands, provides exceptional reactivity for modifying inorganic surfaces and enhancing the performance of polymer composites. This chemical is essential for manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to improve adhesion, durability, and thermal stability.

Application

• Surface Treatment for Fillers and Pigments: Enhances the dispersion and bonding of inorganic fillers (e.g., silica, glass) within polymer matrices like silicone, epoxy, and polyolefins.
• Adhesive and Sealant Formulations: Acts as a crosslinking agent and adhesion promoter, significantly improving bond strength to glass, metals, and ceramics.
• Moisture-Curable Systems: Used in one-part RTV (Room Temperature Vulcanizing) silicones and coatings, where it reacts with atmospheric moisture to form durable, crosslinked networks.
• Fiberglass and Composite Reinforcement: Applied as a sizing or primer on glass fibers to improve the interfacial adhesion and mechanical properties of fiber-reinforced plastics (FRP).
• Nanomaterial Modification: Functionalizes nanoparticles (e.g., silica, titania) to prevent agglomeration and facilitate their integration into advanced polymeric materials.
• Waterproofing and Protective Coatings: Imparts hydrophobic properties and enhances the chemical resistance of coatings for construction and automotive applications.

Basic Information

Product Name	Vinyltriisopropenoxysilane
CAS No.	15332-99-7
Molecular Formula	C11H20O3Si
Molecular Weight	228.36 g/mol
Synonyms	Vinyltris(1-methylethenyloxy)silane; Tris(1-methylvinyloxy)vinylsilane; VTIPS; Vinyl tris(isopropenoxy)silane; Silane, vinyltris(1-methylethenyloxy)-; 1-Methylethenyloxy(ethenyl)dimethylsilane (mixture of isomers); (Ethenyl)tris(2-methyl-1-propenyloxy)silane
EINECS	239-365-7

Quality Control

Our Vinyltriisopropenoxysilane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee consistency and support your quality assurance protocols. We are committed to supplying material that meets the high standards required for industrial and R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	0.92 - 0.96 g/cm³
Refractive Index (n20D)	1.430 - 1.440

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