1,3-Divinyltetramethyldisiloxane
1,3-Divinyltetramethyldisiloxane (CAS: 2627-95-4) is an organosilicon compound with the linear formula [H₂C=CHSi(CH₃)₂]₂O and a molecular weight of 186.40 g/mol. This siloxane monomer features reactive vinyl groups, making it a versatile building block in polymer science and materials chemistry. It is primarily utilised in the synthesis of specialised silicone polymers, cross-linking agents, and functionalised siloxanes for advanced material applications.
- IUPAC
- 1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
- Synonyms
- [H2C=CHSi(CH3)2]2O1,1,3,3-Tetramethyl-1,3-divinyldisiloxane
![1,3-Divinyltetramethyldisiloxane ([H2C=CHSi(CH3)2]2O) — chemical structure, CAS 2627-95-4; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F2627-95-4.png&w=3840&q=75)
Monomer for Silicone Polymer Synthesis
The vinyl groups in 1,3-Divinyltetramethyldisiloxane allow it to participate in polymerisation reactions, serving as a key monomer for creating silicone polymers with specific properties. These polymers find use in various advanced material applications.
Cross-linking Agent
This disiloxane can act as a cross-linking agent in the formulation of silicone elastomers and resins. Its difunctional nature enables the formation of robust polymer networks, enhancing the mechanical and thermal stability of the final material.
Intermediate in Organosilicon Chemistry
It serves as a valuable intermediate in the synthesis of more complex organosilicon compounds and POSS (Polyhedral Oligomeric Silsesquioxane) structures. Its reactivity facilitates the introduction of vinyl functionality into siloxane backbones.
Materials Science Research
1,3-Divinyltetramethyldisiloxane is employed in materials science research for developing novel nanocomposites, coatings, and functional materials due to its unique siloxane structure and reactive vinyl sites.
| Molecular weight | 186.40 |
|---|---|
| Linear formula | [H2C=CHSi(CH3)2]2O |
| Assay | 97% |
| Boiling point | 139 °C(lit.) |
| Density | 0.809 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.411(lit.) |
| Melting point | −99 °C(lit.) |
Hazard statements
- H225Highly flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 19 °C / 66.2 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,3-Divinyltetramethyldisiloxane used for?
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1,3-Divinyltetramethyldisiloxane is primarily used as a monomer for synthesising silicone polymers, as a cross-linking agent in silicone formulations, and as an intermediate in organosilicon chemistry for creating specialised materials and POSS structures.
What is the CAS number and formula for 1,3-Divinyltetramethyldisiloxane?
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The CAS number for 1,3-Divinyltetramethyldisiloxane is 2627-95-4. Its linear formula is [H₂C=CHSi(CH₃)₂]₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Divinyltetramethyldisiloxane with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade, and it should be considered for research and industrial applications.
What are the safety and handling considerations for 1,3-Divinyltetramethyldisiloxane?
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1,3-Divinyltetramethyldisiloxane is a highly flammable liquid and vapour (H225). It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always handle in a well-ventilated area, away from ignition sources, and wear appropriate personal protective equipment, including gloves, safety goggles, and respiratory protection.
How is 1,3-Divinyltetramethyldisiloxane packed, shipped, and exported?
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1,3-Divinyltetramethyldisiloxane is carefully packed in compliance with international shipping regulations for hazardous materials. As a global supplier, Tech Serve Solutions exports this chemical worldwide, adhering to all relevant transport and customs requirements.
How can I request a sample or quote for 1,3-Divinyltetramethyldisiloxane?
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To request a sample or a quotation for 1,3-Divinyltetramethyldisiloxane, please contact our sales team through the website or by phone. Provide your contact details and the quantity required.
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