Poly(Diallyl Dimethyl Ammonium Chloride) (PolyDADMAC), MW 8,500 is a water-soluble cationic polymer supplied as an aqueous solution containing approximately 28% solids. This quaternary ammonium polymer is widely used for surface modification, charge control, coagulation, and formulation applications requiring strong cationic functionality.
PolyDADMAC exhibits high cationic charge density, allowing interaction with negatively charged surfaces, particles, and functional groups in aqueous systems. The polymer is commonly used in water treatment, paper processing, coatings, electronics, and specialty industrial formulations.
This molecular weight grade is suitable for applications involving electrostatic interactions, surface treatments, retention aids, and conductive or antimicrobial coating systems.
Synonyms: PolyDADMAC, Poly(diallyldimethylammonium chloride), Poly(dimethyldiallylammonium chloride)
Key Properties
- Water-soluble cationic polymer
- Approximately 28% solids in water
- High cationic charge density
- Quaternary ammonium polymer chemistry
- Useful for surface modification and electrostatic interactions
- Available in multiple molecular weight ranges
Applications
Water Treatment
PolyDADMAC is commonly used as a coagulant and flocculant in water treatment systems for suspended solids removal and charge neutralization processes.
Paper & Textile Processing
The polymer is used in retention and drainage aid systems to improve process efficiency in paper and textile manufacturing applications.
Surface Treatments & Coatings
PolyDADMAC may be incorporated into surface treatment formulations to provide cationic surface functionality and electrostatic interaction properties.
Antimicrobial & Functional Coatings
Cationic polymers such as PolyDADMAC are used in specialty coating systems and functional surface formulations.
Electronics & Conductive Films
The polymer may be utilized in electrostatic layer formation, conductive polymer systems, and sensor-related research applications.
Compatibility & Formulation Considerations
- Compatible with aqueous systems
- Interacts with negatively charged surfaces and particles
- Performance depends on concentration and system chemistry
- Charge density may influence flocculation and coating behavior
Application performance depends on formulation conditions, substrate compatibility, ionic strength, pH, and processing parameters.
Handling & Storage
- Store tightly sealed in a cool, dry environment
- Protect from freezing and excessive heat exposure
- Mix thoroughly before use if phase separation occurs
- Follow standard laboratory and industrial handling procedures
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FAQ
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1. What is PolyDADMAC used for?
PolyDADMAC is used in water treatment, paper processing, coatings, electronics, and industrial formulations requiring cationic polymer functionality.
2. Is PolyDADMAC water soluble?
Yes. Poly(Diallyl Dimethyl Ammonium Chloride) is supplied as a water-soluble aqueous polymer solution.
3. What does the 28% solids specification mean?
The solution contains approximately 28% polymer solids dispersed in water.
4. How does PolyDADMAC function in water treatment?
The polymer acts as a cationic coagulant and flocculant by interacting with negatively charged suspended particles and contaminants.
5. Can PolyDADMAC be used in coatings and surface treatments?
Yes. The polymer is commonly incorporated into coatings and surface modification systems where cationic surface properties are desired.
Safety & Documentation
Refer to the product Safety Data Sheet (SDS) for complete handling, storage, and safety guidance. Follow standard laboratory and industrial handling procedures when working with cationic polymer solutions.
