Description

1,3-Dimethylbutyl Acrylate CAS NO 18933-92-1 is a specialized acrylate monomer characterized by its branched alkyl chain. This structure is valuable for modifying the physical properties of polymers, such as lowering glass transition temperature (Tg) and enhancing flexibility and hydrophobicity. It is primarily needed by formulators and polymer chemists in the coatings, adhesives, and specialty plastics industries seeking to fine-tune material performance.

Application

• Pressure-Sensitive Adhesives (PSAs): Used as a co-monomer to improve tack, peel adhesion, and low-temperature flexibility.
• Coatings and Paints: Imparts excellent weatherability, water resistance, and low viscosity to acrylic resin formulations for automotive, industrial, and architectural coatings.
• Acrylic Fiber Modifiers: Serves as a comonomer to enhance dyeability, softness, and elasticity in synthetic fibers.
• UV-Curable Resins & Inks: A key reactive diluent and crosslinking agent in formulations requiring fast cure speeds and durable film properties.
• Sealants and Caulks: Contributes to elasticity, adhesion, and longevity in construction and automotive sealant applications.
• Plastic Additives: Used in the synthesis of impact modifiers and processing aids for engineering plastics.

Basic Information

Product Name	1,3-Dimethylbutyl Acrylate
CAS No.	18933-92-1
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	1,3-Dimethylbutyl acrylate; Acrylic acid 1,3-dimethylbutyl ester; 1,3-Dimethylbutyl propenoate; Isohexyl acrylate (mixed isomers); 4-Methylpentyl acrylate (related isomer); DA (abbrev.); DMBA; CAS 18933-92-1
EINECS	242-707-7

Quality Control

Our 1,3-Dimethylbutyl Acrylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and assay, to ensure it meets precise specifications for polymerization-grade monomers. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at temperatures between 15-25°C (59-77°F). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., nitrogen) in the headspace of partially used containers is recommended to prevent polymerization and maintain quality. Keep away from heat, sparks, and open flame.

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 acrylic acid)	≤ 0.1%

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