Description

Poly(Sodium 4-Styrenesulfonate) is a high molecular weight, water-soluble anionic polyelectrolyte. This versatile polymer is valued for its exceptional ability to modify surface charges, stabilize dispersions, and act as a thickening or complexing agent. It is a critical component for manufacturers in the water treatment, textile processing, personal care, and electronics industries seeking to enhance product performance and process efficiency.

Application

• Water Treatment: Used as a scale inhibitor and dispersant in cooling water, boiler water, and reverse osmosis systems.
• Textile & Paper Industries: Functions as a dye dispersant, leveling agent, and retention aid to improve color uniformity and process yield.
• Personal Care & Cosmetics: Serves as a film-forming agent, thickener, and stabilizer in hair care products, skin creams, and lotions.
• Electronics & Semiconductor: Employed as a dopant and conductive material in the fabrication of antistatic coatings, batteries, and photovoltaic cells.
• Pharmaceuticals & Biotechnology: Acts as an excipient for controlled drug release and as a stabilizer in protein purification and diagnostic assays.
• Construction & Cement: Used as a superplasticizer and water-reducing agent to improve the workability and strength of concrete mixtures.
• Oilfield Chemicals: Applied as a fluid loss additive and viscosity modifier in drilling muds and completion fluids.
• Research & Development: Utilized as a model polyanion in academic and industrial research for studying polyelectrolyte behavior and complex formation.

Basic Information

Product Name	Poly(Sodium 4-Styrenesulfonate)
CAS No.	9003-59-2
Molecular Formula	(C8H7NaO3S)n
Molecular Weight	Variable (typically 70,000 - 1,000,000 g/mol)
Synonyms	Sodium polystyrene sulfonate; PSS; PSSNa; Poly(sodium p-styrenesulfonate); Sodium poly(styrenesulfonate); Poly(sodium styrene-4-sulfonate); 4-Ethenylbenzenesulfonic acid sodium salt homopolymer; Sodium 4-vinylbenzenesulfonate polymer
EINECS	618-401-8

Quality Control

Our Poly(Sodium 4-Styrenesulfonate) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent molecular weight distribution, purity, and performance characteristics. Certificates of Analysis (COA) detailing key parameters such as assay, residual monomer content, and solution viscosity are available upon request to support your quality assurance protocols.

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 when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as sodium styrenesulfonate)	≥ 95.0 %
Loss on Drying	≤ 5.0 %
Sulfated Ash	20.0 - 26.0 %
Residual Monomer (HPLC)	≤ 0.1 %
pH (1% aqueous solution)	6.0 - 9.0
Viscosity (Brookfield, 20% aq. sol.)	Contact for details
Molecular Weight (GPC)	Contact for details

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