Polyethylene Glycol Diacrylate (PEGDA)
Número CAS: 26570-48-9
Polyethylene Glycol Diacrylate (PEGDA) is a flexible, hydrophilic difunctional acrylate crosslinker derived from polyethylene glycol. The extended PEG chain between the two acrylate end groups imparts water compatibility, high chain mobility, and low modulus cured networks, making PEGDA the standard crosslinker for hydrogel and waterborne UV systems. Available in molecular weights from PEGDA 200 to PEGDA 1000 to tune crosslink density and swelling ratio.
Especificaciones Técnicas
| Appearance | Colorless to light yellow liquid or waxy solid |
| Water Content | ≤0.5% |
| Acrylate Functionality | 2 (difunctional) |
| Molecular Weight Range | 200–1000 g/mol (PEGDA 200, 400, 600, 1000) |
| Viscosity (25 °C, PEGDA 400) | 50–70 mPa·s |
Aplicaciones
- UV-cured hydrogels for medical and biomedical applications
- Waterborne UV coatings and inkjet inks
- Contact lens materials and ocular drug delivery
- Tissue engineering scaffolds and wound dressings
- Soft lithography and microfluidic device fabrication
Características Principales
- PEGDA hydrophilic PEG backbone enables direct water-compatible UV-cure formulation
- Tunable crosslink density and swelling ratio by selecting PEGDA 200 to PEGDA 1000 grades
- Low cytotoxicity of PEG segment supports use in biomedical hydrogel applications
- Flexible cured network gives high elongation and low modulus for soft material applications