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EHMA (2-Ethyl Hexyl Methacrylate) is an ester of Methacrylic acid used as a raw material component in synthesizing polymers.
EHMA (2-Ethyl Hexyl Methacrylate) is a monofunctional monomer consisting of a methacrylate group with a characteristic high reactivity and a cyclic hydrophobic group and could form homopolymers and copolymers.
EHMA (2-Ethyl Hexyl Methacrylate) could be used as a monomer for polymers in latex paints, lacquers, polishes, coating resins for food contact, and viscosity index improvers.
CAS Number: 688-84-6
Molecular Formula: C12H22O2
Molecular Weight: 198.3
EINECS Number: 211-708-6
Synonyms: 2-Ethylhexyl methacrylate, Methacrylic acid 2-ethylhexyl ester, Methacrylic acid, 2-ethylhexyl ester, 2-Ethylhexyl methacrylate (EHMA), (+/-)-2-ethylhexyl methacrylate, (±)-2-ethylhexyl methacrylate, 2-Ethylhexylmethacrylate, 2-Ethylhexyl 2-methylprop-2-enoate, 2-Ethylhexyl 2-methyl-2-propenoate, 2-Propenoic acid, 2-methyl-, 2-ethylhexyl ester, 2-Propenoic acid, 2-methyl, 2-ethylhexyl ester, 2-Ethyl-1-hexyl methacrylate, Methacrylate, 2-ethylisohexyl, Ethylhexyl methacrylate, Methacrylic Acid Octyl Ester, 1-Hexanol, 2-ethyl-, methacrylate, ACRYESTER EH, 2-Ethylhexyl Methacrylate Resin, ETHYLHEXYL METHACRYLATE [INCI], CAS-688-84-6, EINECS 211-708-6, EC 211-708-6, UNII-8Q7XLQ325N, HSDB 5440, BRN 1769420, NSC-24173, NSC-32647, RefChem:471996, DTXSID3027293, DTXCID007293, MFCD00084373, MFCD00009494, CHEMBL1871010, SCHEMBL16772, SCHEMBL8485577, AKOS015894410, Tox21_201535, Tox21_303072, NCGC00164407-01, NCGC00164407-02, NCGC00257177-01, NCGC00259085-01, WDQMWEYDKDCEHT-UHFFFAOYSA-, WLN: 4Y2&1OVYU1, methacrylate,2-ethylisohexy;2-ethyl-1-hexylmethacrylate;2-Ethylhexyl 2-methylacrylate;2-Ethylhexyl methacryate;2-ethylhexylmethacryate;2-methyl-2-propenoicaci2-ethylhexylester;2-Propenoic acid, 2-methyl-, 2-ethylhexyl ester;2-Propenoicacid,2-methyl-,2-ethylhexylester
EHMA (2-Ethyl Hexyl Methacrylate) is an acrylic ester monomer formed from methacrylic acid and 2-ethylhexanol with the molecular formula C₁₂H₂₂O₂.
EHMA (2-Ethyl Hexyl Methacrylate) is a clear, colorless to slightly yellow liquid with low volatility and good compatibility with many organic monomers.
It is mainly used as a soft, flexibility-providing monomer in polymer and copolymer systems.
EHMA (2-Ethyl Hexyl Methacrylate) contains a reactive vinyl double bond that readily undergoes free-radical polymerization.
This allows it to be incorporated into long polymer chains and crosslinked networks.
It is commonly copolymerized with methyl methacrylate, butyl acrylate, and styrene to tailor material properties.
Because of its long branched 2-ethylhexyl side chain, EHMA (2-Ethyl Hexyl Methacrylate) strongly lowers the glass transition temperature of polymers.
This results in highly flexible, rubber-like materials with good impact resistance.
Such softness is essential for elastomeric coatings and pressure-sensitive adhesive formulations.
EHMA (2-Ethyl Hexyl Methacrylate) performs well in emulsion, solution, and bulk polymerization processes.
It contributes to smooth film formation and good particle coalescence during drying.
This improves surface appearance and mechanical integrity of coatings.
Polymers containing EHMA (2-Ethyl Hexyl Methacrylate) show good resistance to UV radiation and outdoor weathering.
They retain flexibility even after prolonged exposure to sunlight and temperature fluctuations.
This makes them suitable for exterior coatings and sealant applications.
EHMA (2-Ethyl Hexyl Methacrylate) is widely used in adhesives, sealants, and flexible coatings where permanent elasticity is required.
It improves adhesion to plastics, metals, and painted surfaces.
EHMA (2-Ethyl Hexyl Methacrylate) is also used in inks and specialty polymers for flexible packaging.
Because EHMA (2-Ethyl Hexyl Methacrylate) can polymerize uncontrollably when exposed to heat or contaminants, it is always stabilized with inhibitors such as MEHQ.
Storage requires cool temperatures and protection from light and oxidizing agents.
Strict handling procedures are applied in industrial environments to prevent runaway reactions.
EHMA (2-Ethyl Hexyl Methacrylate) forms homopolymers and copolymers.
Copolymers of EHMA (2-Ethyl Hexyl Methacrylate) can be prepared with (meth)acrylic acid and its salts, amides, and esters and with (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, unsaturated polyesters, and drying oils, etc.
It is a monofunctional monomer consisting of a methacrylate group with a characteristic high reactivity and a cyclic branched hydrophobic group.
EHMA (2-Ethyl Hexyl Methacrylate) is stable but may polymerize upon exposure to light.
EHMA (2-Ethyl Hexyl Methacrylate)’s stabilized with hydroquinone monomethyl ether.
EHMA (2-Ethyl Hexyl Methacrylate) is heat sensitive and incompatible with strong acids, strong oxidizing agents, and strong bases.
In copolymer formulations, EHMA (2-Ethyl Hexyl Methacrylate) is often selected to impart permanent flexibility without the need for external plasticizers.
This improves long-term mechanical stability and reduces migration-related property loss.
Such behavior is particularly valuable in soft coatings and flexible adhesive layers.
EHMA (2-Ethyl Hexyl Methacrylate) enhances compatibility between polymer phases in multiphase systems.
It helps reduce phase separation and improves interfacial adhesion between hard and soft polymer domains.
This leads to more uniform mechanical properties and improved durability.
In pressure-sensitive adhesives, EHMA (2-Ethyl Hexyl Methacrylate) contributes to high tack and peel strength while maintaining cohesive integrity.
This balance allows adhesives to bond quickly without leaving residues.
It is therefore widely used in labels, protective films, and medical tapes.
EHMA (2-Ethyl Hexyl Methacrylate)-containing polymers show excellent resistance to cracking under repeated bending and vibration.
They absorb mechanical stress and distribute strain across the polymer network.
This is important for sealants, gaskets, and vibration-damping materials.
Melting point: −50 °C
Boiling point: 218 °C
Density: 0.885 g/mL at 25 °C
Specific gravity: 0.885
Vapor density: 6.9 (vs air)
Vapor pressure: 0.13 hPa at 20 °C
Refractive index: n20/D 1.438
Flash point: 198 °F
Storage temperature: +2 °C to +8 °C
Solubility: <0.1 g/L
Water solubility: <0.1 g/L
Form: Liquid
Color: Colorless
Odor: Ester-like odor
Viscosity: 2.12 mm²/s
Explosive limit: 0.6 % (v/v)
BRN: 1769420
Stability: Stable but may polymerize upon exposure to light; heat sensitive
Incompatible materials: Strong acids, strong oxidizing agents, strong bases
Cosmetic ingredient function: Film forming
InChI: 1S/C12H22O2/c1-5-7-8-11(6-2)9-14-12(13)10(3)4/h11H,3,5-9H2,1-2,4H3
InChIKey: WDQMWEYDKDCEHT-UHFFFAOYSA-N
SMILES: CCCCC(CC)COC(=O)C(C)=C
LogP: 4.95 at 20 °C
EHMA (2-Ethyl Hexyl Methacrylate) is widely used in the production of polymers and resins for coatings, adhesives, sealants, and elastomers.
Known for its long, branched alkyl chain, EHMA (2-Ethyl Hexyl Methacrylate) imparts excellent flexibility, hydrophobicity, and UV resistance, making it ideal for outdoor and weather-resistant formulations.
In automotive coatings and interior components, EHMA (2-Ethyl Hexyl Methacrylate) improves resistance to temperature cycling and mechanical fatigue.
It helps maintain soft-touch surfaces and flexible protective films.
This enhances comfort and durability of vehicle interiors.
EHMA (2-Ethyl Hexyl Methacrylate) is used in specialty elastomeric polymers for footwear, synthetic leather, and flexible coatings.
It provides softness while retaining chemical and abrasion resistance.
This supports long service life in high-wear applications.
EHMA (2-Ethyl Hexyl Methacrylate)-based copolymers are also applied in construction sealants and waterproofing membranes.
They maintain elasticity under UV exposure and moisture.
This helps prevent cracking and water infiltration in building structures.
In printing and packaging, EHMA (2-Ethyl Hexyl Methacrylate) improves flexibility of coatings applied to films and foils.
It prevents coating fracture during bending and rolling processes.
This ensures integrity of barrier layers in multilayer packaging.
EHMA (2-Ethyl Hexyl Methacrylate) can be combined with functional monomers to introduce crosslinkable or reactive groups.
This allows further chemical curing after film formation.
Such systems are used in high-performance industrial coatings.
EHMA (2-Ethyl Hexyl Methacrylate) forms homopolymers and copolymers.
Copolymers of EHMA (2-Ethyl Hexyl Methacrylate) can be prepared with (meth)acrylic acid and its salts, amides, and esters, and with (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, unsaturated polyesters and drying oils, etc.
EHMA (2-Ethyl Hexyl Methacrylate) is also a very useful feedstock for chemical syntheses because it readily undergoes addition reactions with various organic and inorganic compounds.
EHMA (2-Ethyl Hexyl Methacrylate) is a monofunctional monomer with a characteristic high reactivity of methacrylates and a branched hydrophobic moiety.
EHMA (2-Ethyl Hexyl Methacrylate) can be used to impart the following properties to polymers; Chemical resistance, Hydrophobicity, Flexibility, Scratch resistance, Adhesion, Heat resistance, High solids, and Weatherability.
EHMA (2-Ethyl Hexyl Methacrylate) is frequently used in polymer blends designed for long-term outdoor durability, where resistance to ozone, ultraviolet radiation, and moisture is critical.
Its flexible side chain allows polymer networks to accommodate thermal expansion and contraction without developing cracks.
This significantly extends service life of coatings and sealants exposed to harsh climates.
In multilayer coating systems, EHMA (2-Ethyl Hexyl Methacrylate)-containing layers act as stress-relief interlayers between rigid topcoats and hard substrates.
They reduce internal stress accumulation during curing and temperature changes.
This prevents delamination and improves adhesion between coating layers.
EHMA (2-Ethyl Hexyl Methacrylate) improves low-temperature flexibility of polymers, allowing materials to remain elastic even below freezing conditions.
This property is important for applications such as cold-climate sealants, freezer packaging, and outdoor protective films.
It reduces brittleness-related failures in winter environments.
In medical-grade pressure-sensitive adhesives, EHMA (2-Ethyl Hexyl Methacrylate) contributes to skin-friendly flexibility and comfort.
It allows adhesives to conform to body movements without causing irritation or loss of adhesion.
This is valuable in wound dressings, transdermal patches, and medical fixation tapes.
EHMA (2-Ethyl Hexyl Methacrylate) is used in synthetic rubber-like materials for flexible tubing and soft molded parts.
It provides elasticity combined with good chemical resistance to oils and cleaning agents.
This supports use in industrial hoses and flexible connectors.
In specialty coatings for electronics, EHMA (2-Ethyl Hexyl Methacrylate) enhances vibration resistance and shock absorption.
It protects sensitive components from mechanical damage during handling and operation.
This improves reliability of electronic devices and assemblies.
EHMA (2-Ethyl Hexyl Methacrylate)-based polymers are applied in protective coatings for metal corrosion protection where flexibility is needed.
They allow coatings to remain intact even when metal substrates deform or vibrate.
This reduces formation of cracks that could allow moisture penetration.
In graphic arts and specialty inks, EHMA (2-Ethyl Hexyl Methacrylate) improves flexibility of printed films on plastic substrates.
It prevents cracking during folding, cutting, and packaging operations.
This ensures long-lasting visual quality of printed materials.
EHMA (2-Ethyl Hexyl Methacrylate) also supports formulation of soft-touch surface coatings that provide pleasant tactile properties.
These coatings are used in consumer electronics, automotive interiors, and household appliances.
EHMA (2-Ethyl Hexyl Methacrylate) is a type of monomer, primarily used for making acrylic polymers commonly found in plastics, paints, adhesives, and other industrial applications.
Uses Of EHMA (2-Ethyl Hexyl Methacrylate):
EHMA (2-Ethyl Hexyl Methacrylate) can be used as a release coating composition,it is also used in Coating resins, Plastic improvers, Reactive Systems, Textile treating agents, Fabric auxiliary, Paper and water, Lubricating oil additives, Adhesives, and also Dental materials.
EHMA (2-Ethyl Hexyl Methacrylate) is widely used as a soft monomer in acrylic and methacrylic copolymer coatings to provide long-term flexibility and crack resistance.
EHMA (2-Ethyl Hexyl Methacrylate) helps coatings remain elastic under thermal cycling and mechanical stress.
This is essential for exterior architectural and industrial protective coatings.
EHMA (2-Ethyl Hexyl Methacrylate) is a key component in pressure-sensitive adhesive formulations for labels, tapes, and protective films.
EHMA (2-Ethyl Hexyl Methacrylate) provides high tack while maintaining cohesive strength within the adhesive layer.
This balance prevents residue and improves long-term adhesion performance.
In sealants and elastomeric construction materials, EHMA (2-Ethyl Hexyl Methacrylate) improves elasticity and joint movement capability.
It allows sealants to accommodate building expansion and contraction without loss of adhesion.
This is important for façade joints, glazing systems, and waterproofing membranes.
EHMA (2-Ethyl Hexyl Methacrylate) is used in automotive interior coatings and soft-touch surface finishes.
It enhances flexibility, scratch resistance, and tactile comfort of coated plastic parts.
This improves durability and perceived quality of vehicle interiors.
In packaging coatings and laminating adhesives, EHMA (2-Ethyl Hexyl Methacrylate) improves flexibility of films and multilayer structures.
It prevents cracking during bending, folding, and rolling operations.
This supports integrity of food and pharmaceutical packaging materials.
EHMA (2-Ethyl Hexyl Methacrylate) is applied in textile coatings and synthetic leather binders to provide softness and abrasion resistance.
It improves durability under repeated flexing and washing conditions.
This is important for upholstery, footwear, and technical textile products.
In electronics protection coatings, EHMA (2-Ethyl Hexyl Methacrylate) enhances vibration damping and impact resistance.
It helps protect sensitive components from mechanical shock and microcracking.
This increases reliability of electronic assemblies and devices.
EHMA (2-Ethyl Hexyl Methacrylate) is used in corrosion-protective coatings where substrate deformation is expected.
It allows the coating to stretch with metal surfaces without losing barrier properties.
This reduces moisture penetration and corrosion initiation.
In specialty elastomeric polymers, EHMA (2-Ethyl Hexyl Methacrylate) contributes to rubber-like behavior combined with chemical resistance.
These materials are used in flexible hoses, seals, and molded soft components.
They perform well in contact with oils, fuels, and cleaning agents.
EHMA (2-Ethyl Hexyl Methacrylate) is also used in medical and skin-contact adhesive systems that require softness and conformability.
It allows adhesives to follow body movement without causing discomfort or detachment.
This is important for wound dressings, transdermal patches, and medical fixation products.
EHMA (2-Ethyl Hexyl Methacrylate) is used in flexible protective coatings for plastics and composite materials in consumer electronics and appliance housings.
It helps coatings absorb impact and resist cracking caused by daily handling and thermal stress.
This improves both durability and aesthetic appearance of finished products.
EHMA (2-Ethyl Hexyl Methacrylate)-based copolymers are applied in anti-slip and grip-enhancing surface coatings.
They provide elastic surfaces with controlled friction properties.
This is useful for tools, sports equipment, and safety flooring applications.
In marine coatings and sealants, EHMA (2-Ethyl Hexyl Methacrylate) improves resistance to continuous moisture and salt exposure.
It helps coatings remain elastic and well-adhered under wave motion and temperature variation.
This supports long-term protection of boats, docks, and offshore structures.
EHMA (2-Ethyl Hexyl Methacrylate) is used in vibration-damping layers and acoustic insulation coatings.
It converts mechanical energy into heat and reduces sound transmission.
This is important in automotive cabins, machinery housings, and building acoustics.
In flexible electrical insulation coatings, EHMA (2-Ethyl Hexyl Methacrylate) improves resistance to cracking under wire bending.
It maintains dielectric integrity while allowing repeated flexing.
This supports safety and longevity of cables and connectors.
EHMA (2-Ethyl Hexyl Methacrylate)-containing polymers are used in specialty packaging films that require softness and puncture resistance.
They prevent tearing during handling and transportation.
This improves product protection in industrial and consumer packaging.
In protective coatings for medical devices, EHMA (2-Ethyl Hexyl Methacrylate) improves flexibility and resistance to sterilization processes.
It allows coatings to withstand heat and chemical disinfectants without degrading.
This supports safety and longevity of reusable medical equipment.
EHMA (2-Ethyl Hexyl Methacrylate) is used in flexible printing plates and coating layers for graphic applications.
It allows plates to conform to uneven surfaces during printing.
Safety Profile Of EHMA (2-Ethyl Hexyl Methacrylate):
EHMA (2-Ethyl Hexyl Methacrylate) is a flammable liquid and its vapors can form ignitable mixtures with air, especially in enclosed or poorly ventilated areas.
It can ignite when exposed to heat, sparks, static discharge, or open flames.
Combustion may produce irritating and toxic gases such as carbon monoxide and acrylate fumes.
Inhalation of EHMA (2-Ethyl Hexyl Methacrylate) vapors can irritate the nose, throat, and lungs, causing coughing and breathing discomfort.
Short-term exposure may lead to headache, dizziness, and nausea due to central nervous system effects.
High vapor concentrations can impair coordination and increase accident risk in industrial settings.
Direct skin contact with EHMA (2-Ethyl Hexyl Methacrylate) can cause irritation, redness, and drying of the skin.
Because it can penetrate the skin, prolonged exposure may contribute to systemic absorption.
Repeated contact may result in dermatitis and increased skin sensitivity over time.
Eye contact with EHMA (2-Ethyl Hexyl Methacrylate) can cause strong irritation, burning sensation, and excessive tearing.
Splash exposure may lead to temporary visual disturbances and inflammation of the cornea.
Immediate and prolonged eye rinsing is necessary to prevent lasting eye injury.
Ingestion of EHMA (2-Ethyl Hexyl Methacrylate) is harmful and may irritate the mouth, throat, and gastrointestinal tract.
Symptoms can include nausea, vomiting, abdominal pain, and difficulty swallowing.
Medical evaluation is required immediately after accidental ingestion.
