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IOTA 65183 (Octa(aminophenyl)-POSS) is a well-defined organic-inorganic hybrid nanomaterial with a rigid cage-like structure. Its Si-O-Si inorganic core provides exceptional thermal stability, while eight reactive aminophenyl groups at the vertices enable versatile chemical functionalization. This nanoscale molecule (approx. 1-3 nm) serves as a high-performance crosslinker, nano-filler, or polymer modifier for polyimide, epoxy, polyurethane, and other advanced polymer systems-1-6.
| Parameter | Detail |
|---|---|
| CAS No. | 518359-82-5 |
| Molecular Formula | C₄₈H₄₈N₈O₁₂Si₈ |
| Molecular Weight | 1153.64 g/mol |
| Parameter | Specification |
|---|---|
| Appearance | Gray-brown powder |
| Purity | ≥95% |
Nanoscale cage structure – molecular dimensions of ~1-3 nm for molecular-level dispersion-10
Eight reactive amino groups – rich reaction sites for amidation, imidization, and addition reactions-11
Excellent dielectric properties – effectively reduces dielectric constant and loss of polymer matrices-1-3-7
Superior thermal stability – significantly increases Tg and thermal decomposition temperature-3-6
Enhanced mechanical performance – as nano-crosslinker, improves tensile strength, modulus, and dimensional stability-3-7
Good optical transparency – maintains clarity of polymer matrices for optical applications-3
1. Polyimide (PI) Modification
As nano-crosslinker or co-monomer, significantly enhances thermal stability, mechanical properties, and dielectric performance of PI films for flexible electronics, 5G communications, and high-temperature packaging-3-7.
2. Epoxy Resin Reinforcement
As nano-filler or curing crosslinker, improves heat resistance, flame retardancy, and mechanical strength of epoxy composites.
3. Polyurethane (PU) Modification
Incorporates POSS cages into PU backbone via amino-isocyanate reaction, enhancing thermal stability, surface hydrophobicity, and mechanical properties-11-12.
4. Semiconductor Encapsulation & Insulation Materials
Used in cable insulation materials, significantly improving tensile strength, insulation resistivity, and dielectric strength-2.
5. Aerospace Composites
As multi-functional additive, enhances mechanical properties and combustion performance of composite propellants-5.
The amino groups of IOTA 65183 participate in various chemical reactions-11:
Amidation: Condensation with carboxylic acids or anhydrides to form amide bonds
Imidization: Reaction with dianhydrides to form polyimide crosslinked networks
Addition: Reaction with isocyanates to form polyurethane crosslinked networks
Through chemical bonding, rigid POSS cages are introduced into polymer networks at the molecular level, significantly improving overall performance at low loading levels-12.
✅ High purity (≥95%) – consistent batch quality
✅ Eight reactive amino groups – abundant reaction sites
✅ Nanoscale cage structure – excellent dispersibility
✅ Multi-functional modification – improves thermal, mechanical, dielectric, and flame-retardant properties
✅ Academic & industrial validation – featured in high-impact research publications-3-7
✅ Low loading, high efficiency – cost-effective
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