290807

2-Ethylhexyl methacrylate

98%, contains ~50 ppm monomethyl ether hydroquinone as stabilizer

• Synonym(s): 2-EHA, EHMA
• Linear Formula: CH₂=C(CH₃)COOCH₂CH(C₂H₅)(CH₂)₃CH₃
• CAS Number: 688-84-6
• Molecular Weight: 198.30
• Beilstein: 1769420
• EC Number: 211-708-6
• MDL number: MFCD00009494
• UNSPSC Code: 12162002
• PubChem Substance ID: 24857488
• NACRES: NA.23

Properties

• vapor density: 6.9 (vs air)
• Assay: 98%
• contains: ~50 ppm monomethyl ether hydroquinone as stabilizer
• refractive index: n20/D 1.438 (lit.)
• bp: 120 °C/18 mmHg (lit.)
• density: 0.885 g/mL at 25 °C (lit.)
• SMILES string: CCCCC(CC)COC(=O)C(C)=C
• InChI: 1S/C12H22O2/c1-5-7-8-11(6-2)9-14-12(13)10(3)4/h11H,3,5-9H2,1-2,4H3
• InChI key: WDQMWEYDKDCEHT-UHFFFAOYSA-N

Description

General description

2-Ethylhexyl methacrylate(EHMA) is a methacrylate ester monomer with low volatility and excellent adhesion to a wide range of substrates. This monomer enhances the flexibility, impact resistance, and toughness of polymers when used in copolymerization. It has good resistance to weathering and helps to enhance the durability and long-term performance of coatings. These copolymers and coatings are applied in the fields of contact lenses, dental restorative materials, and 3D printing.

Application

-Ethylhexyl methacrylate can be used:

• As a monomer to prepare poly(2-phenoxyethyl methacrylate-co-2-phenoxyethyl acrylate-co-2-ethylhexyl methacrylate) (PPPE) intraocular lenses used in cataract treatment. Polymers with 2% 2-ethylhexyl methacrylate are foldable and showed excellent optical and thermomechanical properties.
• To prepare copolymer for the surface modification of dental composite resins to control plaque formation. EHMA imparts water resistance and antifouling properties of dental resins.
• As an internal plasticizer to prepare photo-crosslinked shape memory polymer films used as a photoprintable resins in stereolithography.
• As a precursor to synthesize hydrogels for fabricating contact lenseswith flexibility, permeability, and comfort.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H317,H319,H335,H412
• Precautionary Statements: P261 - P264 - P273 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 197.6 °F - closed cup
• Flash Point(C): 92 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves