Description

1,1,3,3,5,5-Hexamethyl-1,5-Divinyltrisiloxane is a high-purity organosilicon compound, specifically a functionalized trisiloxane, valued for its dual vinyl end groups. This structure makes it a versatile and reactive intermediate for the synthesis of advanced silicone polymers and hybrid materials. It is essential for manufacturers in the silicone elastomer, specialty resin, and advanced materials sectors seeking to introduce crosslinkable vinyl functionality into their products.

Application

• Crosslinking Agent: A key reactive component in the production of addition-cure (hydrosilylation) silicone rubbers, gels, and resins.
• Silicone Polymer Modification: Serves as a chain extender or endblocker to introduce vinyl groups into polydimethylsiloxane (PDMS) backbones, modifying reactivity and properties.
• Hybrid Material Synthesis: Used in the creation of organic-inorganic hybrid (OIH) materials, coatings, and composites for enhanced performance.
• Release Coatings & Adhesives: A building block for formulating high-performance silicone release liners and pressure-sensitive adhesives (PSAs).
• Personal Care & Cosmetics: Employed in the synthesis of specialty silicone fluids used as emollients and conditioning agents.
• Electronic Encapsulants: A precursor for silicone gels and elastomers used in potting and protecting sensitive electronic components.

Basic Information

Product Name	1,1,3,3,5,5-Hexamethyl-1,5-Divinyltrisiloxane
CAS No.	17980-39-1
Molecular Formula	C10H24O2Si3
Molecular Weight	260.55 g/mol
Synonyms	Divinylhexamethyltrisiloxane; 1,5-Divinyl-1,1,3,3,5,5-hexamethyltrisiloxane; Trisiloxane, 1,1,3,3,5,5-hexamethyl-1,5-divinyl-; Vinyl-terminated hexamethyltrisiloxane; HMVT; DVT; 1,3,5-Trisiloxane derivative; Bis(vinyl-dimethylsiloxy)dimethylsilane
EINECS	Contact for details

Quality Control

Our 1,1,3,3,5,5-Hexamethyl-1,5-Divinyltrisiloxane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive (hygroscopic) and should be handled under a dry inert atmosphere (e.g., nitrogen) for critical applications to prevent hydrolysis.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.405 - 1.415
Density (20°C)	0.88 - 0.92 g/mL

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