Description

1,3,5-Trivinyl-1,1,3,5,5-Pentamethyltrisiloxane is a specialized organosilicon compound featuring a trisiloxane backbone with reactive vinyl groups. This structure makes it a valuable cross-linking agent and reactive intermediate for synthesizing advanced silicone polymers and hybrid materials. It is essential for manufacturers in the silicone elastomer, adhesive, and advanced coating industries seeking to enhance material properties through tailored molecular architecture.

Application

• Cross-linking agent in the production of high-performance silicone rubbers and elastomers (HTV, RTV).
• Key monomer for synthesizing vinyl-functional silicone fluids, resins, and modified siloxanes.
• Reactive intermediate in hydrosilylation reactions to create custom silicone-organic hybrid polymers.
• Building block for manufacturing release coatings, pressure-sensitive adhesives, and sealants.
• Surface modification agent for inorganic fillers to improve compatibility in silicone composites.
• Precursor for sol-gel chemistry and the development of specialty silica-based materials.

Basic Information

Product Name	1,3,5-Trivinyl-1,1,3,5,5-Pentamethyltrisiloxane
CAS No.	1529-65-3
Molecular Formula	C11H24O2Si3
Molecular Weight	272.56 g/mol
Synonyms	Trisiloxane, 1,1,3,5,5-pentamethyl-1,3,5-trivinyl-; 1,3,5-Trimethyl-1,3,5-trivinyltrisiloxane; Vinyl-terminated pentamethyltrisiloxane; Divinyltetramethyldisiloxane homologue; Tris(vinyldimethylsiloxy)methylsilane; V3; A versatile vinyl-functional siloxane.
EINECS	Contact for details

Quality Control

Our 1,3,5-Trivinyl-1,1,3,5,5-Pentamethyltrisiloxane is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing key specifications such as assay, identity, and impurity profiles are available upon request.

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). Keep away from heat, sparks, and open flames. This material is moisture-sensitive; ensure containers are sealed under an inert atmosphere such as nitrogen to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.410 - 1.415
Density (20°C)	0.88 - 0.92 g/mL
Water Content (KF)	≤ 0.1%

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