Isobutyl methacrylate
CAS Number
97-86-9
EC Number
202-613-0
Abbreviation
IBMA
What is Isobutyl methacrylate?
Isobutyl methacrylate (CAS 97-86-9), commonly abbreviated as IBMA, is a methacrylate monomer used to build flexibility, adhesion, and hardness balance into polymer systems.
Where is Isobutyl methacrylate used?
- Coatings: copolymerized in architectural and industrial coatings to tune film hardness and outdoor durability without sacrificing flexibility
- Automotive refinish: incorporated into acrylic resins
- Adhesives: contributes to tack and cohesive strength in pressure-sensitive and structural adhesives
- Printing inks and packaging lacquers: IBMA-based copolymers achieve adhesion to films and foils
- It functions as a reactive building block in emulsion, solution, and bulk polymerization.
Good to know: Controlled glass transition temperature is critical to coating performance; the monomer is balanced against harder or softer comonomers.
Commercial specifications
- Drums and ISO tank containers; bulk quantities available
Other Names (Synonyms)
Methacrylic acid, isobutyl ester|2-Propenoic acid, 2-methyl-, 2-methylpropyl ester|Isobutyl 2-methyl-2-propenoate|2-METHYLPROPYL METHACRYLATE|Isobutyl alpha-methacrylate|Isobutyl alpha-methylacrylate|Isobutylester kyseliny methakrylove|Isobutyl α-methylacrylate|IBMA
What are the physical properties of Isobutyl methacrylate?
Melting Point -37 °C
Boiling Point 155 °C @ Press: 760 Torr
Density 0.8858 g/cm³ @ Temp: 20 °C
Flash Point 107 °F
Appearance colourless liquid
Color Clear colorless
Odor ether-like odor
Form Liquid
Water Solubility Soluble in water at 20°C, 2g/L
Vapor Pressure 3.5 mm Hg ( 20 °C)
Refractive Index n 20/D 1.420(lit.)
Log P 2.95 at 20℃
How is Isobutyl methacrylate classified and handled safely? Learn More
Warning
GHS02· Flammable GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H226 Flammable liquid and vapor
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Isobutyl methacrylate?
HS Code 29161290
UN Number 2283
ADR Class 3
Packing Group III
WGK (Germany) 1