Methacryl POSS (MA-POSS) is a methacrylate-functionalized polyhedral oligomeric silsesquioxane nanomaterial. It is an organic-inorganic hybrid nanomaterial featuring a silsesquioxane cage core with propylmethacrylate functional groups attached to its corners. While most of the cages had a (SiO₁.₅)₈
core, some cages with a (SiO₁.₅)₁₀ or (SiO₁.₅)₁₂ core were also present.
MA-POSS combines UV-reactive methacrylate groups with a well-defined 3D cage structure (~1.5-2nm), delivering exceptional free-radical polymerization reactivity, thermal stability, and mechanical reinforcement. These synergistic properties enhance photopolymerization efficiency, weather resistance, and structural integrity in polymer systems, making it ideal for UV-curable coatings, high-performance composites, biomedical devices, and functional optical materials.
*This product is co-developed and jointly produced with Shenzhen Institute for Advanced Polymer Materials (SIAP).
Octakis(3-methacryloxypropyl) polyhedral oligomeric silsesquioxane
160185-24-0
| Property | Description |
| Chemical Name | Octakis(3-methacryloxypropyl) polyhedral oligomeric silsesquioxane |
| Molecular Formula | (C₇H₁₁O₂)₈Si₈O₁₂ |
| CAS number | 160185-24-0 |
| Appearance | Colorless, Colorless viscous liquid |
| Viscosity (25 oC) | 1.5-2.2 Pa•s |
| Density | ~ 1.2 g/mL |
| Refractive Index | 1.46 |
| Solubility | Soluble in THF, chloroform, acetone; insoluble in water |
| Purity | ≥ 98.0% |
MA-POSS is compatible with almost all epoxy and acrylic resins, whether aliphatic or aromatic. Adhesives and coatings can experience advantages such as reduced shrinkage, improved wear resistance, enhanced durability, and excellent transparency.
Photocurable Materials: Used as a reactive monomer in UV-curable resins to enhance curing speed and mechanical strength, suitable for 3D printing and coatings.
Composites: Improves hardness and heat resistance of acrylic resins or polyesters, applicable in high-performance composites.
Functional Coatings: Applied in wear-resistant, scratch-resistant coatings to enhance surface protection.
Note: This document does not contain the product safety information necessary for safe use. Prior to handling, please review the product and material safety data sheets along with hazard information. To obtain material safety data information, reach out to SIAP.
Keep away from fire and direct sunlight.
Store in a cool, dry, and well-ventilated area, away from direct sunlight and high temperatures.
It has 12 months shelf life in closed containers.
Recommended storage temperature: 5°C - 25°C.
Avoid contact with strong oxidizers, free-radical initiators, or acidic substances (to prevent premature
polymerization).
Products beyond the shelf life can be usable, if quality check passed.
Standard Packaging: 1 kg/bottle, 5 kg/drum, 25 kg/drum.
Packaged in light-proof sealed containers; custom packaging available upon request.
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