Description

Vinyl Tris(Trimethylsiloxy)Silane is a specialized organosilicon compound, a reactive silane coupling agent featuring a vinyl group and three trimethylsiloxy substituents. This unique structure provides exceptional reactivity and compatibility, making it a critical intermediate for modifying material surfaces and creating advanced hybrid polymers. It is essential for industries requiring enhanced adhesion, cross-linking, and hydrophobic properties in their final products. Key sectors utilizing this chemical include silicone manufacturing, advanced composites, and specialty coatings.

Application

• Silicone Cross-linking Agent: Used as a key component in moisture-curable silicone resins and sealants to enhance cross-linking density and mechanical properties.
• Surface Modification: Acts as a coupling agent to improve the adhesion between inorganic fillers (like silica) and organic polymer matrices in composite materials.
• Hydrophobic Coating Precursor: Serves as a building block for synthesizing superhydrophobic coatings for textiles, electronics, and construction materials.
• Release Agent Intermediate: Employed in the production of silicone-based release coatings for labels, adhesives, and industrial molding.
• Pharmaceutical & Cosmetic Ingredient: Used as a silanizing agent or intermediate in the synthesis of specialty silicones for personal care and controlled-release drug delivery systems.
• Adhesive Formulation: Enhances the performance and durability of high-strength adhesives, particularly those used in demanding environments.

Basic Information

Product Name	Vinyl Tris(Trimethylsiloxy)Silane
CAS No.	5356-84-3
Molecular Formula	C11H30O3Si4
Molecular Weight	322.71 g/mol
Synonyms	VTMS; Tris(trimethylsiloxy)vinylsilane; Vinyltris(trimethylsiloxy)silane; Ethenyltris(trimethylsiloxy)silane; Silane, ethenyltris(trimethyloxy)-; UCB 100; A-171 (alternative designation); 1-Ethenyl-1,1,3,3,3-pentamethyl-2-trimethylsilyloxydisiloxane
EINECS	226-317-5

Quality Control

Our Vinyl Tris(Trimethylsiloxy)Silane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality commitment ensures the material meets the high standards required for research, development, and industrial-scale production.

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/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	0.88 - 0.92 g/cm³
Refractive Index (n20D)	1.390 - 1.410
Water Content (KF)	≤ 0.1%

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