Core Reasons
1. Diversified copolymerization capability
SMAS can copolymerize easily with acrylamide, acrylic acid, maleic anhydride and other common monomers to synthesize varied functional polymers. One single raw monomer meets multiple product formulas for oilfield & water treatment.
2. Excellent high-temperature & high-salinity resistance from sulfonate groups
The non-hydrolyzable sulfonate side chain endows copolymers with outstanding thermal and salt tolerance. Products adapt to ultrahigh TDS formation water (>150000 ppm) in late oilfield exploitation and high-hardness industrial circulating water, outperforming ordinary acrylic monomers.
3. Multi-effect for oilfield EOR applications
- Polymer flooding: improves viscosity retention, controls fingering & channeling for low-permeability reservoir;
- Deep profile control: forms stable crosslinked gel with Cr³⁺ / organic crosslinkers for in-depth plugging;
- ASP flooding: shields polymer chains to restrain alkali degradation of HPAM in ternary composite drive.
4. Multiple water-treatment functions from modified polymers
SMAS-modified copolymers integrate three core functions in circulating & industrial wastewater:
① Scale inhibition (CaCO₃, Ca₃(PO₄)₂, BaSO₄);
② Dispersion for suspended sludge;
③ Amphoteric flocculation for municipal/industrial sludge dewatering, replacing multiple single-function additives.
5. Chemical stability with wide formula compatibility
Sulfonate group is inert toward acid, alkali and common inorganic ions, compatible with phosphonates, surfactants and flocculants without precipitation or efficacy failure, convenient for compound formulation.
Concise Academic Summary
Thanks to flexible copolymerization and stable sulfonate structure, Sodium Methallyl Sulfonate (SMAS)develops scale inhibitors, flocculants, flooding polymers and profile-control gels, hence a universal multifunctional monomer.
