Description

sec-Butyl Methacrylate is a versatile methacrylate ester monomer characterized by its branched alkyl chain. This chemical structure is crucial for modifying the properties of polymers, offering a balance between flexibility, hardness, and chemical resistance in the final material. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty plastics industries for developing advanced acrylic copolymers.

Application

• Acrylic Resin Modification: Used as a co-monomer to impart internal plasticization, improving the low-temperature flexibility and toughness of acrylic and methacrylic resins.
• High-Performance Coatings: A key ingredient in automotive, industrial, and UV-curable coatings to enhance adhesion, weather resistance, and film formation.
• Pressure-Sensitive Adhesives (PSAs): Modifies the viscoelastic properties of acrylic adhesives, optimizing tack, peel strength, and shear resistance.
• Printing Inks & Overprint Varnishes: Contributes to fast-drying, durable, and glossy finishes with excellent substrate compatibility.
• Impact Modifiers: Incorporated into engineering plastics to improve impact strength and processing characteristics.
• Fiber Treatment & Textile Finishes: Used in binders and finishes to provide water repellency, softness, and durability to fabrics.

Basic Information

Product Name	sec-Butyl Methacrylate
CAS No.	2998-18-7
Molecular Formula	C8H14O2
Molecular Weight	142.20 g/mol
Synonyms	2-Butyl methacrylate; Methacrylic acid, sec-butyl ester; 1-Methylpropyl methacrylate; s-Butyl methacrylate; 2-Butyl 2-methyl-2-propenoate; SBMA; NSC 24133
EINECS	221-063-5

Quality Control

Our sec-Butyl Methacrylate is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets exacting industry standards. Certificates of Analysis (COA) detailing all test results are provided with every shipment to guarantee supply reliability and product consistency for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The product typically contains an inhibitor (e.g., MEHQ) to prevent polymerization during storage; monitor inhibitor levels for long-term storage.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.5%
Color (APHA)	≤ 20
Water Content (KF)	≤ 0.1%
Inhibitor (MEHQ)	50 - 100 ppm
Acidity (as Methacrylic Acid)	≤ 0.1%

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