Methyl vinyl ether-monobutyl maleate copolymer, identified by CAS number 25119-68-0, is a versatile anionic copolymer widely utilized for its exceptional film-forming and adhesive properties. Chemically, it consists of alternating units of methyl vinyl ether and maleic acid, where a portion of the maleic acid groups is esterified with n-butanol. This specific structural configuration imparts a unique balance of hydrophobicity and solubility, making it highly compatible with various solvent systems, particularly ethanol and aqueous-alcoholic mixtures.
In industrial and research settings, this copolymer is valued for its ability to form clear, flexible, and tack-free films that exhibit excellent moisture resistance. Its carboxylic acid functionality allows for fine-tuning of its performance through neutralization with various bases, which can modify its solubility, viscosity, and adhesion to different substrates. Handling this material typically requires standard chemical safety protocols, ensuring it is stored in a cool, dry environment to maintain its stability and performance characteristics over time.