Description

Octavinyloctasilasesquioxane is a well-defined, cage-structured organosilicon compound with eight reactive vinyl groups. This unique molecular architecture makes it a critical precursor for synthesizing advanced hybrid organic-inorganic materials with tailored thermal and mechanical properties. It is essential for researchers and manufacturers in the semiconductor, aerospace, and high-performance coatings industries seeking to enhance material performance through precise molecular design.

Application

• Hybrid Material Synthesis: A key building block for creating Polyhedral Oligomeric Silsesquioxane (POSS)-based nanocomposites and resins.
• Thermoset Polymers: Used as a cross-linking agent or co-monomer in vinyl-ester resins, silicones, and other thermosetting plastics to improve heat resistance and dimensional stability.
• Surface Modification: Functionalizes inorganic surfaces (e.g., silica, metals) to introduce vinyl groups for subsequent grafting or adhesion promotion.
• LED Encapsulation: Incorporated into encapsulant materials for light-emitting diodes (LEDs) to enhance optical clarity and thermal management.
• Low-k Dielectrics: Serves as a precursor for porous, low-dielectric-constant films used in advanced semiconductor manufacturing.
• Specialty Coatings: Imparts scratch resistance, weatherability, and thermal stability to high-performance protective and decorative coatings.
• Catalyst Support: Provides a well-defined, nanoscale platform for immobilizing transition metal catalysts.
• Academic & Industrial R&D: A valuable reagent for exploring new material concepts in nanotechnology and polymer science.

Basic Information

Product Name	Octavinyloctasilasesquioxane
CAS No.	69655-76-1
Molecular Formula	C16H24O12Si8
Molecular Weight	633.07 g/mol
Synonyms	Octavinyl-POSS; Octavinyl T8 Silsesquioxane; Vinylsilsesquioxane; OVS; Octavinyloctasilsesquioxane; Octavinyl cubic silsesquioxane; 1,3,5,7,9,11,13,15-Octavinylpentacyclo[9.5.1.1³,⁹.1⁵,¹⁵.1⁷,¹³]octasiloxane
EINECS	Contact for details

Quality Control

Our Octavinyloctasilasesquioxane is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including NMR, FT-IR, and HPLC, to verify chemical structure and purity. A detailed Certificate of Analysis (COA) documenting all relevant specifications is provided with every shipment.

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). For long-term storage, consider using an inert atmosphere or desiccant to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 2.0%

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