Description

1,4-Benzenedicarboxylic Acid, Bis(2-Methyl-2-Propenyl) Ester is a specialized diester derivative of terephthalic acid, valued for its role as a reactive monomer and crosslinking agent in advanced polymer synthesis. Its chemical structure, featuring two methacrylate groups, makes it a critical component for introducing rigidity and thermal stability into polymer backbones. This compound is essential for manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance material performance.

Application

• Crosslinking Agent for Acrylic Polymers: Imparts improved hardness, chemical resistance, and thermal properties to coatings and films.
• Reactive Diluent in UV-Curable Systems: Used in inks, adhesives, and protective coatings to modify viscosity and enhance cure speed and final film properties.
• Monomer for Specialty Polyesters and Polyamides: Serves as a building block for high-performance engineering plastics with enhanced mechanical strength.
• Modifier for Dental and Medical Polymer Composites: Contributes to the durability and biocompatibility of resin-based materials.
• Intermediate for Organic Synthesis: Used in the preparation of more complex chemical entities in pharmaceutical and agrochemical research.
• Component in Fiber-Reinforced Composites: Enhances the interfacial adhesion between the polymer matrix and reinforcing fibers like glass or carbon.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Bis(2-Methyl-2-Propenyl) Ester
CAS No.	2985-54-8
Molecular Formula	C16H18O4
Molecular Weight	274.31 g/mol
Synonyms	Bis(2-methylallyl) terephthalate; 2-Methyl-2-propenyl terephthalate; Terephthalic acid bis(2-methylallyl) ester; Dimetallyl terephthalate; 1,4-Bis(methacryloyloxy)benzene (common misnomer); Terephthaloyl dimethacrylate (common name); Benzene-1,4-dicarboxylic acid di(2-methylprop-2-en-1-yl) ester (IUPAC); TPDMA
EINECS	221-047-6

Quality Control

Our production of 1,4-Benzenedicarboxylic Acid, Bis(2-Methyl-2-Propenyl) Ester adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided 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 room temperature (15-25°C). This product may contain polymerization inhibitors; prolonged storage at elevated temperatures or exposure to light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g
Inhibitor Content (MEHQ)	100 - 200 ppm

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