Polyethylene glycol diacrylate
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- Email:sales@etongchem.com
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Description
Additional Information
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Category
Acrylate series
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Describe
Polyethylene glycol diacrylate (PEGDA) is a type of bifunctional acrylate monomer/oligomer prepared by esterification reaction of polyethylene glycol (PEG) with acryloyl chloride or acrylic acid. It has excellent hydrophilicity, flexibility and biocompatibility.
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Cas No.
26570-48-9
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Purity
mixture
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Synonym(s)
PEGDA
Physical and chemical properties
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1. Chemical Identity
- Chemical Name: Poly(ethylene glycol) diacrylate
- Synonyms: PEGDA, Polyethylene glycol (n) diacrylate
- CAS Number: 26570-48-9 (This is a general CAS for the polymer class)
- Molecular Formula: H2?C=CHCO(OCH2?CH2?)n?OOCCH=CH2? (where 'n' varies)
- Molecular Weight: Variable (Typically ranges from ~300 to >1000 g/mol)
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2. Physical Properties (Representative Example: PEG 400 Diacrylate)
- Appearance: Clear, colorless to pale yellow liquid.
- Odor: Mild, characteristic, ester-like.
- Melting Point: Not applicable (amorphous solid at low temperatures).
- Boiling Point: >200 °C (>392 °F) at 1013 hPa
- Density: Approximately 1.11 - 1.12 g/cm³ at 25 °C
- Solubility:
- In Water: Soluble (solubility decreases as molecular weight increases).
- In Organic Solvents: Soluble in many common organic solvents like acetone, ethanol, and THF.
- Vapor Pressure: <0.01 hPa at 20 °C
- Viscosity: 50 - 100 mPa·s at 25 °C (Highly dependent on molecular weight)
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3. Chemical Properties and Stability
- Stability: Stable under recommended storage conditions. Typically supplied with a polymerization inhibitor (e.g., MEHQ).
- Incompatibilities: Incompatible with strong oxidizing agents, strong bases, strong acids, reducing agents, peroxides, and free-radical initiators. Avoid exposure to UV light and high temperatures.
- Hazardous Polymerization: May occur if not properly inhibited or if exposed to heat, light, radiation, or contaminants. Polymerization is a highly exothermic reaction and can be rapid and violent.
- Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO) and carbon dioxide (CO2?).
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4. Other Key Data
- Flash Point: >150 °C (>302 °F) - Closed cup
- Refractive Index (n20/D): ~1.465 - 1.470
| Industry Category | Chemicals |
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| Product Category | Acrylate series |
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