Description

2-Propenoic Acid 2-Ethylhexyl Ester Polymer With Ethenylbenzene And 2-Methyl-2-[(1- Oxo-2-Propenylamino]-1-Propane Sulfonic Acid CAS NO 128584-02-1 is a specialized, high-performance copolymer designed to deliver exceptional functionality in demanding formulations. This product matters because it combines the hydrophobic character of 2-ethylhexyl acrylate, the structural integrity of styrene (ethenylbenzene), and the powerful anionic, hydrophilic properties of a sulfonic acid-based monomer, creating a unique amphiphilic polymer. It is primarily needed by manufacturers in the coatings, adhesives, and advanced material sectors seeking to enhance properties like adhesion, dispersion stability, and rheological control.

Application

• Industrial and Protective Coatings: Acts as a key binder or additive to improve film formation, water resistance, and substrate adhesion.
• Pressure-Sensitive Adhesives (PSAs): Used to modify tack, peel strength, and shear resistance in label and tape formulations.
• Pigment and Filler Dispersants: Enhances the stabilization and uniform distribution of solids in aqueous and solvent-based systems.
• Textile and Leather Finishing: Provides durable hand feel, water repellency, and anti-soiling properties.
• Rheology Modifier: Imparts desirable flow and viscosity characteristics to complex fluid formulations.
• Construction Chemicals: Utilized in cement modifiers and tile adhesives to improve flexibility and water retention.

Basic Information

Product Name	2-Propenoic Acid 2-Ethylhexyl Ester Polymer With Ethenylbenzene And 2-Methyl-2-[(1- Oxo-2-Propenylamino]-1-Propane Sulfonic Acid
CAS No.	128584-02-1
Molecular Formula	(C11H20O2.C8H8.C7H11NO4S)x
Molecular Weight	Polymer - Variable
Synonyms	2-Ethylhexyl Acrylate-Styrene-AMPS Terpolymer; Acrylic-Styrene-AMPS Copolymer; AMPS Copolymer; Poly(2-ethylhexyl acrylate-co-styrene-co-2-acrylamido-2-methylpropanesulfonic acid); 2-Acrylamido-2-methylpropanesulfonic Acid Polymer with 2-Ethylhexyl Acrylate and Ethenylbenzene; Terpolymer of 2-EHA, Styrene, and AMPS; Hydrophobically Modified Alkali-Swellable Emulsion (HASE) Polymer; Anionic Associative Thickener
EINECS	Contact for details

Quality Control

Our production of this advanced copolymer adheres to strict quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent monomer conversion, molecular weight distribution, and functional performance. Certificates of Analysis (COA) detailing key parameters such as solids content, pH, viscosity, and residual monomers 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, well-ventilated area at room temperature (15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive). Prolonged exposure to high humidity or extreme temperatures should be avoided to maintain product integrity and performance.

Specification

Item	Specification
Appearance	White to off-white dispersion or solid
Solids Content	40 - 50 %
pH (as supplied)	6.0 - 8.0
Viscosity (Brookfield)	500 - 5000 cPs
Identification (IR)	Conforms
Residual Monomer (HPLC)	< 0.5 %

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