Description

1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane is a highly reactive organosilicon monomer featuring a cyclic trisiloxane core with three vinyl and three methyl substituents. This compound is a crucial building block in the synthesis of specialty silicone polymers, offering precise control over cross-linking density and polymer architecture. It is essential for manufacturers in the advanced materials, electronics, and specialty coatings sectors seeking to develop high-performance, custom silicone elastomers and resins.

Application

• Cross-linking Agent for Silicone Elastomers: Serves as a key reactive site for peroxide or platinum-catalyzed curing, enhancing the mechanical strength and thermal stability of silicone rubbers.
• Precursor for Functional Silicone Resins: Used in the synthesis of phenyl-vinyl or other modified silicone resins for high-temperature resistant coatings and encapsulants.
• Component in Release Coatings: Incorporated into formulations for paper and film release liners, providing controlled adhesion properties.
• Intermediate for Personal Care Polymers: Acts as a monomer in the production of silicone-based conditioning agents for hair and skin care products.
• Building Block for Silsesquioxanes (POSS): Utilized as a starting material for creating polyhedral oligomeric silsesquioxanes, which are hybrid organic-inorganic nanomaterials.
• Adhesive and Sealant Formulations: Enhances the cure speed and final properties of addition-cure silicone adhesives and sealants.
• Electronic Encapsulation Materials: Used in formulating silicones for potting and protecting sensitive electronic components due to its stable cyclic structure.

Basic Information

Product Name	1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane
CAS No.	3901-77-7
Molecular Formula	C9H18O3Si3
Molecular Weight	258.49 g/mol
Synonyms	1,3,5-Trimethyl-1,3,5-trivinylcyclotrisiloxane; Vinylmethylcyclotrisiloxane; Cyclotrisiloxane, 1,3,5-trimethyl-1,3,5-trivinyl-; D3Vi; V3; 2,4,6-Trimethyl-2,4,6-trivinylcyclotrisiloxane; Tris(vinylmethyl)cyclotrisiloxane; VMC3
EINECS	223-449-5

Quality Control

Our 1,3,5-Trivinyl-1,3,5-Trimethylcyclotrisiloxane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR), to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are available upon request to support your quality assurance protocols.

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 an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and premature polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.430 - 1.435
Density (20°C)	0.98 - 1.02 g/mL

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