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IOTA 64443 is an aminopropyl-functionalized polyhedral oligomeric silsesquioxane (POSS) featuring a well-defined Si-O-Si inorganic cage structure with reactive aminopropyl functional groups at the vertices. Its unique "inorganic core-organic shell" structure makes it broadly applicable in polymer modification, nanocomposites, coatings, and biomedical fields.
| Parameter | Detail |
|---|---|
| CAS No. | 444315-15-5 |
| Molecular Formula | C₃₁H₇₁NO₁₂Si₈ |
| Molecular Weight | 874.58 g/mol |
| Parameter | Specification |
|---|---|
| Appearance | White powder |
| Purity | ≥98% |
Nanoscale cage structure – molecular dimensions of ~1–3 nm for molecular-level dispersion
Reactive amino functional groups – react with carboxyl, anhydride, epoxy, isocyanate, and other groups for chemical incorporation
High purity (≥98%) – excellent batch-to-batch consistency
Excellent thermal stability – Si-O-Si inorganic backbone provides superior heat resistance
Organic-inorganic hybrid characteristics – combines siloxane rigidity with amino reactivity
Good compatibility – readily dispersible in various polymer matrices
The aminopropyl group participates in various reactions:
Amidation – reacts with carboxylic acids or anhydrides to form amide bonds
Epoxy ring-opening – reacts with epoxy groups for chemical crosslinking
Addition – reacts with isocyanates to form urea bonds
Nucleophilic substitution – further functionalization with other reactive groups
1. Polymer Modification
Acts as a nano-crosslinker or grafting monomer in epoxy, polyurethane, polyimide, and other systems, significantly improving heat resistance, mechanical properties, and dimensional stability.
2. Nanocomposites
Incorporates POSS cage structures into polymer matrices through chemical bonding for high-performance organic-inorganic hybrid materials.
3. High-Performance Coatings
Used in epoxy anti-corrosion coatings and polyurethane wear-resistant coatings to improve hardness, scratch resistance, adhesion, and weatherability.
4. Biomedical Materials
Used as a functional component for surface modification of biomedical polymers.
5. Electronic Encapsulation Materials
Used in semiconductor and LED encapsulation to enhance insulation performance and thermal stability.
Store sealed in a cool, dry, dark place away from moisture
Packaging specifications: customizable upon request
✅ High purity (≥98%) – consistent quality
✅ Nanoscale cage structure – excellent dispersibility
✅ Reactive amino groups – versatile reaction pathways
✅ Combines inorganic thermal stability with organic reactivity
✅ Suitable for polymers, nanocomposites, coatings, electronics, and more
For samples, application recommendations, or technical support, please feel free to contact us.
