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IOTA 66965 is a POSS derivative featuring vinyl functional groups with a well-defined nanoscale cage-like structure. It can be introduced into polymer systems as a monomer, crosslinker, or grafted side group, enabling precise control over material properties. Its application scope spans from general-purpose polymers to high-performance composites, providing nanoscale modification capabilities for material design.
| Parameter | Specification |
|---|---|
| Appearance | White powder |
| Purity | ≥98% |
| CAS No. | 69655-76-1 |
| Molecular Formula | C₁₆H₂₄O₁₂Si₈ |
| Molecular Weight | 633.03 |
Vinyl group provides defined reactive sites – participates in free radical polymerization, hydrosilylation, and other reactions; achieves permanent modification through chemical bonding
Nanoscale cage structure (~1.5 nm) – enables molecular-level dispersion; significantly alters properties at loadings as low as <5%
High purity (≥98%) – minimizes interference from impurities, ensuring reliable synthesis and batch-to-batch consistency
Organic-inorganic hybrid characteristics – combines the rigidity and thermal stability of siloxanes with the reactivity of organic groups, offering a dual-material advantage
Flexible designability – serves as a platform molecule for further derivatization
Thermoset Resin Modification
Acts as a comonomer or nano-filler in epoxy, polyimide, and other thermosetting systems to increase Tg and decomposition temperature while improving fracture toughness.
UV-Curable Systems
Leverages the photopolymerization activity of vinyl groups; used with acrylates or thiol-ene systems for high-hardness, high-transparency coatings or 3D printing materials.
Dielectric Materials
Nano-scale voids effectively reduce dielectric constant, suitable for high-frequency communications and electronic encapsulation.
Composite Interface Modification
Improves interfacial bonding between fibers (glass, carbon) and resin matrices through chemical bonding, enhancing mechanical performance and durability.
Addition methods: Blend with monomers prior to polymerization, or disperse physically into polymer matrices during processing
Dispersion techniques: Solvent-assisted dispersion or melt compounding recommended to achieve nanoscale uniformity
Recommended loading: Typically 0.5%–5% (relative to polymer matrix); optimal level determined by experimental evaluation of target properties
Store sealed in a cool, dry place away from light
Packaging specifications available upon request
✅ High purity (≥98%) – minimizes side reactions
✅ Nanoscale size – significant modification at low loadings
✅ Vinyl reactive groups – versatile reaction pathways
✅ Combines inorganic thermal stability with organic processability
✅ Suitable for thermosets, UV-curable systems, dielectrics, composites, and more
For samples, application recommendations, or technical support, please feel free to contact us.
