Sodium methacrylate CAS:5536-61-8

Sodium methacrylate, with the molecular formula C₄H₅NaO₂, is the sodium salt of methacrylic acid. This compound is characterized by its water-solubility, which significantly enhances its utility in various formulations and applications. As a methacrylate, it contains a vinyl group that allows it to undergo polymerization, making it a versatile monomer for producing a wide array of polymers and copolymers. One of the primary uses of sodium methacrylate lies in the manufacture of superabsorbent polymers (SAPs). When polymerized, sodium methacrylate forms cross-linked structures that can absorb large amounts of water relative to their own mass. This property is particularly valuable in products such as diapers, feminine hygiene products, and agricultural applications where moisture retention is critical. The hydrophilic nature of the polymer also aids in improving the performance and efficiency of these products. In addition to its role in creating superabsorbent materials, sodium methacrylate is employed in the production of coatings and adhesives. Its ability to form strong films contributes to the durability and longevity of coatings applied to surfaces in construction, automotive, and consumer goods industries. Furthermore, sodium methacrylate-based adhesives exhibit good bonding properties across different substrates, making them suitable for various applications. Moreover, sodium methacrylate has gained attention in biomedical research due to its potential as a pH-sensitive material. When incorporated into drug delivery systems, it can respond to changes in pH, allowing for controlled release of therapeutic agents at specific sites within the body. This feature holds promise for enhancing the efficacy of treatment regimens, particularly in targeted cancer therapies and localized drug delivery. Overall, the unique properties of sodium methacrylate, combined with its versatility as a building block in polymer chemistry, continue to drive research and innovation across diverse fields, from consumer products to advanced biomedical applications.