Dimethyl Diallyl Ammonium Chloride (DADMAC)
CAS Number: 7398-69-8
Dimethyl diallyl ammonium chloride (DADMAC) is a cationic diallyl monomer that polymerizes via cyclo-addition to form poly-DADMAC, a permanent quaternary ammonium polycation. Poly-DADMAC is widely used as a coagulant for water treatment, retention aid in papermaking, and antistatic agent in textiles. DADMAC is supplied as an aqueous solution.
Technical Specifications
| appearance | Colorless to pale yellow aqueous solution |
| pH (as-supplied) | 4.0–7.0 |
| concentration (%) | 65 ± 1 |
| allyl chloride (ppm) | ≤100 |
| purity (on dry basis, %) | ≥95.0 |
Applications
- Poly-DADMAC coagulant for drinking water and wastewater treatment
- Cationic polymer for paper and board retention and drainage
- Antistatic treatment for synthetic fibers and textiles
- Hair conditioning cationic polymer synthesis
- Ion-exchange membrane and electrode coating
Key Features
- Permanent quaternary ammonium charge stable across the full pH range after polymerization
- Cyclo-polymerization produces a five-membered pyrrolidinium ring for high charge density
- High cationic charge density provides effective coagulation at low dosage
- Low allyl chloride residual meets stringent drinking water treatment regulations
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CAS Number
7398-69-8
Category
Polymer Synthesis ChemicalsAvailability
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