Description

Octadecyl 2-Methylprop-2-Enoate is a long-chain alkyl ester of methacrylic acid, serving as a versatile monomer and intermediate in polymer chemistry. Its primary value lies in its ability to impart hydrophobicity, low surface energy, and internal plasticization to polymer chains, enhancing material performance. This compound is essential for manufacturers in the coatings, adhesives, and specialty plastics industries seeking to modify surface properties and improve product durability.

Application

• As a hydrophobic comonomer in the synthesis of acrylic and methacrylic resin coatings for enhanced water resistance.
• Key intermediate for manufacturing internal plasticizers and flow modifiers in polymer systems.
• Used in the production of pressure-sensitive adhesives (PSAs) and sealants to adjust tack and peel strength.
• Surface modification agent for textile finishes and fiber treatments to achieve water-repellent properties.
• Raw material for creating release coatings and low-adhesion surfaces in industrial applications.
• Component in the formulation of specialty lubricants and grease thickeners.
• Building block for UV-curable resins and inks used in graphic arts and electronics.
• Modifier for engineering plastics to improve processing and impact resistance.

Basic Information

Product Name	Octadecyl 2-Methylprop-2-Enoate
CAS No.	70776-36-2
Molecular Formula	C22H42O2
Molecular Weight	338.57 g/mol
Synonyms	Stearyl Methacrylate; n-Octadecyl Methacrylate; Octadecyl Methacrylate; Methacrylic Acid, Octadecyl Ester; SMA; ODA; Stearyl 2-Methyl-2-propenoate; 2-Methyl-2-propenoic Acid Octadecyl Ester
EINECS	274-829-1

Quality Control

Our Octadecyl 2-Methylprop-2-Enoate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical testing, including assay, identity confirmation, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is available with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to prevent polymerization and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white waxy solid / Flakes
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0 %
Acid Value	≤ 1.0 mg KOH/g
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.1 %
Melting Point	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.