What is the characteristic of vinyl acetate monomer? - CAS NO 108-05-4

What is the characteristic of vinyl acetate monomer?

• Physical: Clear, colorless, mobile liquid. Sweet, pungent odor. Boiling point: 72.7°C.
• Chemical: Contains a reactive vinyl group (CH₂=CH-) and an ester linkage (-O-CO-). This structure makes it prone to both addition polymerization (via the double bond) and hydrolysis (breaking the ester bond with water/acid/base).
• Reactivity: It polymerizes readily upon exposure to heat, light, or peroxides. For this reason, commercial VAM is always shipped with inhibitors (e.g., hydroquinone, diphenylamine) added to prevent unwanted polymerization during storage and transport.
• Solubility: Limited solubility in water (~2% wt.), but miscible with most common organic solvents (alcohols, ethers, ketones).

What is vinyl acetate monomer CAS 108-05-4 used for?

Polyvinyl acetate (PVA), polyvinyl alcohol (PVOH), and ethylene-vinyl acetate (EVA) all rely on Vinyl Acetate Monomer for their flexible, adhesive properties. Paints, coatings, textile finishes, and paper sizing agents all benefit from polymers rooted in VAM. Even chewing gum bases and some food packaging materials come down to the right VAM-derived polymer blend, thanks to its balance of adherence and flexibility. Properties like clarity, elasticity, and weather resistance get tuned by adjusting the VAM content in a copolymer recipe. 

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