Description

Sodium Methacrylate/Styrene Copolymer is a synthetic polymer derived from the copolymerization of sodium methacrylate and styrene monomers. This versatile material is engineered to provide excellent water solubility and film-forming properties, making it a valuable component in advanced industrial formulations. It is primarily utilized in sectors such as coatings, adhesives, and specialty construction materials where controlled rheology and enhanced performance are critical.

Application

• Water-Based Coatings and Paints: Acts as a rheology modifier and binder to improve application properties and film integrity.
• Adhesives and Sealants: Used as a thickening agent and film former in pressure-sensitive and construction adhesives.
• Construction Chemicals: Employed in cementitious formulations and tile adhesives to enhance workability, water retention, and adhesion.
• Textile and Paper Processing: Serves as a sizing agent, coating binder, or processing aid to improve surface properties and strength.
• Personal Care Products: Functions as a film-forming agent and stabilizer in hair styling gels and other cosmetic formulations.
• Industrial Dispersants: Used to stabilize pigments and other particulates in aqueous suspension systems.

Basic Information

Product Name	Sodium Methacrylate/Styrene Copolymer
CAS No.	33970-45-5
Molecular Formula	(C4H5O2Na·C8H8)n
Molecular Weight	Variable (Polymer)
Synonyms	Sodium Methacrylate Styrene Copolymer; Styrene Sodium Methacrylate Copolymer; Poly(sodium methacrylate-co-styrene); Methacrylic Acid, Sodium Salt, Polymer with Styrene; 2-Propenoic Acid, 2-Methyl-, Sodium Salt, Polymer with Ethenylbenzene; SMA Copolymer (Sodium Methacrylate); Sodium Poly(methacrylate-co-styrene); Acrylic-Styrene Copolymer, Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium Methacrylate/Styrene Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including checks for molecular weight distribution, residual monomer content, and ionic character. Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee compliance with your specifications and industry standards.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Complies
Assay (as copolymer)	≥ 95.0 %
Residual Monomers	≤ 0.5 %
Moisture Content	≤ 5.0 %
pH (1% aqueous solution)	6.0 - 8.5
Viscosity (specified concentration)	Contact for details
Particle Size (Typical)	Contact for details

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