IOTA Silicone Oil（Anhui） Co., Ltd.
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In advanced fields such as high-performance polymer modification, electronic packaging, optical coatings, and aerospace composites, material breakthroughs often depend on molecular-level structural design. IOTA 61257 Octa(dimethylsiloxy)octasilsesquioxane is a well-defined cage-structured organic-inorganic hybrid nanomaterial. With its precise molecular architecture and high reactivity, it serves as an ideal nanoscale building block for advanced functional materials.
IOTA 61257 belongs to the polyhedral oligomeric silsesquioxane (POSS) family. Its core is an eight-silicon cage framework constructed from silicon-oxygen bonds, with each of the eight corners bearing a dimethylsiloxy functional group. This unique "inorganic core – organic shell" structure combines the thermal stability of silica with the compatibility of silicones, making it a renowned "nano-additive" in the field of material modification.
| Parameter | Value |
|---|---|
| Product Code | IOTA 61257 |
| CAS No. | 125756-69-6 |
| Molecular Formula | C₁₆H₅₆O₂₀Si₁₆ |
| Molecular Weight | 1017.97 |
| Appearance | White powder |
| Purity | ≥95% |
Precise Nanostructure: Molecular size of approximately 1–3 nm; the cage framework provides a regular template for material modification
High Reactivity: Terminal Si–H bonds can undergo hydrosilylation and various other derivatization reactions to construct functionalized POSS
Organic-Inorganic Hybrid: Combines the compatibility of organic materials with the thermal stability, hardness, and scratch resistance of inorganic materials
Low Addition, High Return: An addition level of only 0.5–2% can increase the thermal decomposition temperature of polymers by 30–50°C
High Purity Assurance: ≥95% purity, strict quality control, and excellent batch-to-batch consistency
| Application Area | Core Value | Typical Scenarios |
|---|---|---|
| High-Performance Polymer Modification | Improves thermal stability, mechanical properties, and flame retardancy | LED encapsulation, engineering plastics, polyurethane elastomers |
| UV/EB-Curable Coatings | Enhances hardness, scratch resistance, and weatherability | Optical films, 3D printing materials, PCB protective layers |
| Electronic Encapsulation Materials | Low dielectric constant, low coefficient of thermal expansion (CTE) | Semiconductor packaging, high-frequency communication devices |
| Aerospace Composites | Atomic oxygen resistance, improved interfacial adhesion | Spacecraft protective coatings |
| Biomedical Materials | Antimicrobial properties, controlled release, biocompatibility | Medical device coatings, drug delivery carriers |
| Research Reagents | Precursors for novel functional material synthesis | University and institute R&D innovation |
1. Polymer Modifier
Improved Heat Resistance: The cage structure restricts polymer chain movement, significantly increasing thermal decomposition temperature
Mechanical Reinforcement: Uniform nanoscale dispersion increases modulus, hardness, and wear resistance
Reduced Dielectric Constant: Nano-sized cavities effectively lower the dielectric constant – suitable for 5G and other high-frequency applications
Flame Retardancy & Smoke Suppression: Forms a dense silica-char layer during combustion, providing both flame retardancy and smoke suppression
2. High-Performance Coatings
High Hardness & Scratch Resistance: The inorganic cage core imparts ceramic-like hardness to the coating, resisting scratches
Optical Transparency: Molecular-level dispersion does not scatter visible light, keeping the coating clear and transparent
Weather & Corrosion Resistance: Resists UV radiation, acid rain, and salt spray, extending coating service life
3. Electronic Encapsulation Materials
Low Stress: Low CTE reduces internal stress during thermal cycling
Low Dielectric Loss: Meets the requirements for high-frequency, high-speed signal transmission
Storage Conditions: Store in a cool, dry place away from light, in a sealed container
Precautions: Use promptly after opening; prolonged exposure to air may reduce active component content
