Triethylene Glycol Dimethacrylate (TEGDMA), identified by its CAS number 109-16-0, is a prominent member of the dimethacrylate family of monomers. As a difunctional methacrylic ester derived from triethylene glycol, TEGDMA possesses a unique molecular architecture that bestows upon it a set of valuable physical and chemical properties. These properties make it a highly sought-after raw material across a diverse spectrum of industrial applications, ranging from high-performance coatings and adhesives to specialized dental and biomedical materials. Understanding TEGDMA's characteristics is key for any professional involved in material formulation and manufacturing.

Chemically, TEGDMA is characterized by its two terminal methacrylate groups, which are highly reactive and capable of undergoing free-radical polymerization. The central triethylene glycol segment provides flexibility and influences the hydrophilic nature of the monomer. Its low viscosity (typically 5-15 mPa.s at 25°C) is a significant advantage, enabling it to act as an effective reactive diluent. This means it can reduce the viscosity of more viscous monomers, facilitating easier processing, better application, and improved wetting of substrates in formulations, particularly in UV-curable systems. The density of TEGDMA is around 1.092 g/mL, and its boiling point is approximately 170-172 °C at 5 mmHg, indicating its relative stability under normal processing conditions.

The synthesis of TEGDMA typically involves the esterification of triethylene glycol with methacrylic acid or its derivatives, such as methacryloyl chloride, often in the presence of an acid catalyst. Ensuring high purity during synthesis is critical, as residual impurities can negatively impact polymerization kinetics and final product performance. Reputable manufacturers, like those found in China, adhere to strict quality control measures to deliver TEGDMA with assay levels often exceeding 99%.

The industrial significance of TEGDMA stems from its broad applicability. In UV-curing applications, it enables rapid polymerization, leading to coatings and inks with excellent hardness, scratch resistance, and chemical stability. For dental materials, TEGDMA is a crucial co-monomer that balances flexibility and toughness, improving the handling and durability of composite resins and bonding agents. It is also employed in the development of hydrogels for biomedical applications due to its hydrophilic nature and crosslinking capabilities. Furthermore, TEGDMA is used in various industrial adhesives, sealants, and even in certain textile and paper treatments where enhanced durability and specific surface properties are desired.

For businesses looking to procure TEGDMA, partnering with established manufacturers and suppliers is essential to ensure product quality, consistent supply, and competitive pricing. We, as a dedicated supplier of chemical raw materials, offer high-grade TEGDMA that meets stringent industry requirements. We encourage R&D scientists and procurement managers to explore our product offerings, request technical documentation, and inquire about bulk purchasing options to leverage the significant advantages TEGDMA brings to advanced material formulations.