Hydroxyethyl Acrylate
CAS Number: 818-61-1
Hydroxyethyl acrylate (HEA) is a hydroxyl-functional acrylic monomer that introduces pendant -OH groups into copolymer chains, enabling crosslinking with isocyanates, melamines, and other reactive curatives. It is widely used in two-component waterborne and solventborne coatings, radiation-curable systems, and polymer-supported catalyst applications.
Technical Specifications
| appearance | Colorless transparent liquid |
| purity (%) | ≥96.0 |
| water content (%) | ≤0.1 |
| inhibitor (MEHQ, ppm) | 200 ± 50 |
| hydroxyl value (mg KOH/g) | 480–500 |
Applications
- Two-component polyurethane coating systems (2K PU)
- Radiation-curable oligomer synthesis
- Hydroxyl-functional acrylic resins for automotive topcoats
- Polymer-supported reagents and catalyst carriers
- Textile and leather crosslinkable finishing agents
Key Features
- Reactive hydroxyl group enables robust crosslinking with isocyanate and melamine curatives
- Lower Tg contribution than HPMA for more flexible crosslinked networks
- Suitable for both radical polymerization and UV-curable oligomer modification
- Good water compatibility facilitates waterborne 2K coating formulation
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CAS Number
818-61-1
Category
Polymer Synthesis ChemicalsAvailability
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