Reactive bifunctional molecule featuring both vinyl (styryl) and hydrolyzable methoxy silane groups.
Enables covalent bonding between organic polymers and inorganic substrates such as glass, silica, and metals.
Enhances interfacial adhesion, mechanical strength, and moisture resistance in composite systems.
Compatible with free-radical polymerization processes, allowing incorporation into acrylic, styrenic, and unsaturated polyester resins.
Offers superior hydrolytic stability compared to triethoxysilane analogues due to optimized methoxy group reactivity.
Adhesion promoter in rubber-to-metal bonding for automotive components.
Surface modifier for silica and glass fillers in high-performance thermoset composites.
Functional additive in UV-curable coatings and inks for improved substrate wetting and crosslink density.
Interfacial coupling agent in fiber-reinforced plastics (FRP) and pultruded profiles.
| Chemical Type | p-Styryltrimethoxysilane |
| Product Form | Clear, colorless to pale yellow liquid |
| Appearance | Homogeneous liquid, free from visible impurities |
| Molecular Weight | 236.3 g/mol |
| Boiling Point (760 mmHg) | 250–260 °C (decomposes) |
| Density at 25 °C | 1.09–1.11 g/cm³ |
| Refractive Index (n20D) | 1.525–1.535 |
| Storage Condition | Store under dry nitrogen, at 2–8 °C, protected from moisture and light |
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