Description

Poly(Sodium 4-Styrenesulfonate) is a high molecular weight, water-soluble anionic polyelectrolyte derived from the polymerization of sodium 4-styrenesulfonate. This versatile polymer is valued for its exceptional dispersing, stabilizing, and charge-modifying properties in aqueous systems. It is a critical component for formulators and manufacturers in water treatment, coatings, textiles, and advanced material science, where consistent performance and ionic strength are paramount.

Application

• Water Treatment: Acts as a highly effective dispersant and anti-scaling agent in cooling water, boiler water, and reverse osmosis systems.
• Coatings & Inks: Serves as a pigment dispersant and rheology modifier to improve color development, stability, and application properties.
• Textile & Fiber Processing: Used as a leveling agent, antistatic agent, and dye dispersant to enhance dye uptake and uniformity.
• Paper Manufacturing: Functions as a retention aid and drainage aid to improve paper strength and production efficiency.
• Enhanced Oil Recovery (EOR): Employed as a viscosifier in polymer flooding to improve sweep efficiency and oil displacement.
• Concrete & Construction: Utilized as a superplasticizer and water-reducing agent to improve the workability and strength of concrete mixes.
• Personal Care & Cosmetics: Acts as a thickener, stabilizer, and film-forming agent in hair care and skincare formulations.
• Research & Development: Used as a model polyanion or charge carrier in the development of membranes, hydrogels, and conductive polymers.

Basic Information

Product Name	Poly(Sodium 4-Styrenesulfonate)
CAS No.	25704-18-1
Molecular Formula	(C8H7SO3Na)n
Molecular Weight	Variable (Typical Mw 70,000 - 1,000,000 g/mol)
Synonyms	Sodium polystyrene sulfonate; PSS; PSSNa; Poly(sodium styrenesulfonate); Poly(sodium p-styrenesulfonate); Sodium poly(styrenesulfonate); 4-Ethenylbenzenesulfonic acid sodium salt homopolymer; Sodium 4-vinylbenzenesulfonate polymer
EINECS	247-152-0

Quality Control

Our Poly(Sodium 4-Styrenesulfonate) is manufactured under a stringent quality management system. Each batch is tested to ensure consistent molecular weight distribution, purity, and ionic content. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, sulfonate content, residual monomer levels, and solution viscosity. Our quality commitment supports applications requiring reliable performance and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect flow properties and performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as Sodium Styrenesulfonate)	≥ 95.0 %
Molecular Weight (Mw)	70,000 - 1,000,000 (Custom grades available)
Loss on Drying	≤ 5.0 %
Sulfonate Content	Contact for details
pH (1% aqueous solution)	6.0 - 9.0
Residual Monomer	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.