N-Methyl-N-vinylacetamide (NMVA) is a specialty vinyl monomer with affinity for water and organic solvents, used in polymer and copolymer synthesis. It can undergo free-radical polymerization in water or hydrocarbon solvents and can be copolymerized with monomers including acrylamide, vinyl acetate, and methyl methacrylate.
Synonyms: NMVA; N-vinyl-N-methylacetamide; N-ethenyl-N-methylacetamide; N-vinylmethylacetamide.
This ≥98% grade has a molecular weight of 99.1 g/mol and molecular formula C5H9NO. NMVA is soluble in water and several organic solvents and has also been studied in controlled radical polymerization.
Key Properties
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Chemical type: Vinyl amide monomer
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Product number: 22065
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CAS number: 3195-78-6
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Purity: ≥98% by GC
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Molecular formula: C5H9NO
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Molecular weight: 99.1 g/mol
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Appearance: Clear, colorless to yellow-brown liquid
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Boiling point: 70°C at 25 mm Hg
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Storage temperature: 4°C
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Package size: 25 g
Applications
Free-Radical Polymerization
NMVA can be polymerized under free-radical conditions in water or hydrocarbon solvents.
Copolymer Synthesis
NMVA can be copolymerized with acrylamide, vinyl acetate, and methyl methacrylate to prepare vinyl copolymers with different compositions.
Controlled Radical Polymerization Research
NMVA has been studied in reversible addition-fragmentation chain-transfer (RAFT) polymerization for the preparation of poly(N-methyl-N-vinylacetamide) and block copolymers.
Solubility & Compatibility
At 25°C, NMVA is soluble in water, ethanol, acetone, toluene, and ethyl acetate. It is also soluble in polymerizable monomers including styrene, methyl methacrylate, hydroxyethyl methacrylate, PEG methacrylate, acrylic acid, vinyl acetate, N-vinylpyrrolidone, and N-vinylformamide.
Preparation Tips
- Aqueous solutions of NMVA have limited shelf life
- NMVA decomposes rapidly under low-pH conditions
Handling & Storage
- Store at 4°C in a cool, well-ventilated location
- Keep away from heat, sparks, open flames, and other ignition sources
- Use in a fume hood or other well-ventilated laboratory area
- Wear protective gloves, safety glasses, and suitable protective clothing
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FAQ
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1. What is N-methyl-N-vinylacetamide (NMVA)?
NMVA is a vinyl amide monomer with the molecular formula C5H9NO. It is used in polymerization and copolymer synthesis.
2. What is N-methyl-N-vinylacetamide used for?
NMVA is used in free-radical polymerization and copolymer synthesis. It can polymerize in water or hydrocarbon solvents and can be copolymerized with acrylamide, vinyl acetate, and methyl methacrylate.
3. Is N-methyl-N-vinylacetamide the same as N-vinylacetamide?
No. N-methyl-N-vinylacetamide (NMVA) contains an N-methyl group and is chemically distinct from N-vinylacetamide (NVA).
4. Is NMVA the same as N-vinylformamide?
No. N-methyl-N-vinylacetamide and N-vinylformamide are different vinyl amide monomers with different chemical structures.
5. What is the CAS number for N-methyl-N-vinylacetamide?
The CAS number for N-methyl-N-vinylacetamide is 3195-78-6.
6. What solvents dissolve NMVA?
At 25°C, NMVA is soluble in water, ethanol, acetone, toluene, and ethyl acetate. It is also soluble in several common polymerizable monomers.
7. What package size is available?
Product 22065-25 contains 25 g. For larger quantities, use the bulk-quote option.
Safety & Documentation
NMVA is a combustible liquid and can be harmful in contact with skin or if inhaled. It can also cause skin and eye irritation. Refer to the Safety Data Sheet (SDS) for complete safety and handling information, the Product Specification for quality specifications, and the Monomers Product Guide for related vinyl and ethenyl monomers.
