⟡ Acrylamide Copolymers / Hydrogels / Rheology Modifiers
Poly(acrylamide/acrylic acid), 90:10, Sodium Salt
Poly(acrylamide/acrylic acid) is an anionic acrylamide copolymer that combines the water-absorbing properties of acrylamide with the pH-responsive functionality of acrylic acid. This 90:10 sodium salt grade is designed for applications requiring hydrophilicity, swelling behavior, viscosity modification, and charge-based interaction in aqueous systems.
Poly(acrylamide/acrylic acid) is used in hydrogels, water treatment, flocculation, rheology modification, hydrophilic coatings, and controlled-release formulation development. Its anionic character and water-retentive properties make it useful for research and industrial applications where polymer swelling, viscosity control, and environmental responsiveness are important.
Key Features & Benefits
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Anionic acrylamide copolymer: supports charge-based interactions in aqueous and formulation systems
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90:10 acrylamide/acrylic acid composition: balances acrylamide-driven water absorption with acrylic acid functionality
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Sodium salt form: suitable for hydrophilic and water-interactive applications
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Water-absorbing polymer: supports swelling behavior and hydrogel formation
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pH-responsive functionality: acrylic acid groups contribute environmental responsiveness
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Rheology modification: helps adjust viscosity, flow behavior, and formulation consistency
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Flocculation support: useful in water treatment, wastewater processing, and sedimentation applications
Product Details
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Product name: Poly(acrylamide/acrylic acid)
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Composition: 90:10 acrylamide/acrylic acid
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Form: Sodium salt
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Polymer type: Anionic acrylamide copolymer
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Function: Hydrogel polymer, flocculant, rheology modifier, controlled-release material
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Key properties: Water absorption, hydrophilicity, pH responsiveness, viscosity modification
Typical Applications
Water treatment and flocculants
Used in wastewater treatment, sedimentation, and flocculation processes where anionic charge and water interaction support particle aggregation, separation, and settling.
Biomedical and research hydrogels
Supports hydrophilic gel formation for swelling studies, controlled-release research, and pH-responsive material development.
Rheology modification
Helps adjust viscosity, water retention, and flow behavior in personal care, coatings, and industrial formulation systems.
Controlled-release formulations
Useful in formulation designs where swelling behavior and environmental pH response influence release performance.
Hydrophilic coatings
Can be used in coating systems where water interaction, surface hydrophilicity, and polymer functionality are important.
Functional Role
Poly(acrylamide/acrylic acid) functions as a hydrophilic, anionic copolymer that can absorb and retain water while contributing charge-responsive behavior through acrylic acid groups. In aqueous systems, this combination can support swelling, viscosity development, flocculation, and controlled-release performance.
The acrylamide component contributes water absorption and gel-forming behavior, while acrylic acid functionality introduces anionic character and pH-responsive properties. This makes the copolymer useful in applications where hydration, polymer swelling, and environmental responsiveness are key performance requirements.
Why Acrylic Acid Content Matters
The acrylic acid portion of the copolymer introduces carboxylate functionality, which can influence swelling behavior, charge density, water interaction, and pH responsiveness. In this 90:10 acrylamide/acrylic acid composition, the polymer maintains acrylamide-driven water absorption while adding anionic functionality for applications such as flocculation, hydrogels, rheology modification, and responsive formulations.
For a broader overview of how polymer composition influences swelling, viscosity, and hydrogel behavior, see our polymer molecular weight selection guide.
Handling & Storage
- Store in a cool, dry place in a tightly sealed container.
- Protect from moisture to maintain product quality.
- Use appropriate laboratory handling practices.
- Consult the SDS for detailed handling, storage, and safety information.
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FAQ
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What is poly(acrylamide/acrylic acid) used for?
Poly(acrylamide/acrylic acid) is used in hydrogels, water treatment, flocculation, rheology modification, hydrophilic coatings, and controlled-release formulation development.
Is poly(acrylamide/acrylic acid) an anionic polymer?
Yes. This product is an anionic acrylamide copolymer supplied as the sodium salt.
How is poly(acrylamide/acrylic acid) used in hydrogels?
Its water-absorbing and hydrophilic properties support swelling behavior and gel network formation, making it useful for hydrogel research and controlled-release applications.
Why is acrylic acid included in the copolymer?
Acrylic acid introduces anionic functionality and pH-responsive behavior, which can influence swelling, charge interaction, viscosity, and formulation performance.
Is this copolymer suitable for water treatment applications?
Poly(acrylamide/acrylic acid) can be used in water treatment and flocculation applications where anionic charge and water interaction support particle aggregation and sedimentation.
What industries use acrylamide acrylic acid copolymers?
Acrylamide acrylic acid copolymers are used in water treatment, coatings, personal care, biomedical research, controlled-release systems, and industrial formulation development.
