Description

Tetraethylene Glycol Dimethacrylate is a high-purity, difunctional methacrylate monomer characterized by its extended tetraethylene glycol spacer. This chemical structure is critical for its role as a crosslinking agent, providing flexibility and durability to polymer networks. It is essential for manufacturers in the coatings, adhesives, and advanced polymer industries seeking to enhance product performance through tailored crosslink density and mechanical properties.

Application

• UV-Curable Coatings & Inks: A key reactive diluent and crosslinker for formulations requiring fast cure speeds, high gloss, and chemical resistance.
• Dental & Biomedical Polymers: Used in the production of dental composites, bone cements, and hydrogel matrices due to its biocompatibility and controllable polymerization.
• Adhesives & Sealants: Imparts enhanced adhesion, flexibility, and weatherability to acrylic-based structural and pressure-sensitive adhesives.
• Fiber Optic Coatings: Employed in primary and secondary coatings to protect glass fibers, offering low shrinkage and excellent mechanical protection.
• Printing Plates & Photoresists: Serves as a crosslinking monomer in photopolymerizable systems for high-resolution imaging and durable printing plates.
• Modifier for Rubber & Plastics: Used to graft onto polymer backbones, improving impact resistance, surface properties, and processability.

Basic Information

Product Name	Tetraethylene Glycol Dimethacrylate
CAS No.	109-17-1
Molecular Formula	C16H26O7
Molecular Weight	330.37 g/mol
Synonyms	TEGDMA; 2-Methyl-2-propenoic acid oxybis(2,1-ethanediyloxy-2,1-ethanediyl) ester; Tetraethyleneglycol dimethacrylate; 2-Propenoic acid, 2-methyl-, 1,1'-[oxybis(2,1-ethanediyloxy-2,1-ethanediyl)] ester; Ethoxylated Trimethylolpropane Triacrylate (related series); Tetraglycol Dimethacrylate; SR 209; NK Ester 4G
EINECS	203-652-6

Quality Control

Our Tetraethylene Glycol Dimethacrylate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, purity, and inhibitor content analysis, to ensure consistency and compliance with industry standards. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C under an inert atmosphere (e.g., nitrogen) to prevent premature polymerization and oxidation. Keep away from heat, sparks, and open flame. For long-term storage, the use of a polymerization inhibitor is recommended.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.1%
Inhibitor (MEHQ)	100 - 200 ppm
Color (APHA)	≤ 50
Refractive Index (20°C)	1.460 - 1.465
Density (20°C)	1.08 - 1.12 g/cm³

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