Description

Maleic Anhydride, Polymer With 2-Hydroxy-Ethyl Acrylate And Styrene CAS NO 25265-97-8 is a specialized functional copolymer designed for high-performance industrial applications. This versatile polymer combines the reactivity of maleic anhydride with the film-forming and adhesion properties of styrene and 2-hydroxyethyl acrylate, creating a material with excellent crosslinking potential and compatibility. It is essential for formulators and manufacturers seeking to enhance the durability, adhesion, and chemical resistance of their products. Key industries that rely on this advanced polymer include coatings, adhesives, and specialty resin production.

Application

• Industrial Coatings Binder: Used as a key component in high-performance industrial and protective coatings to improve adhesion to metal, plastic, and composite substrates.
• Adhesive & Sealant Formulations: Serves as a reactive modifier in structural adhesives and sealants, enhancing bond strength and environmental resistance.
• Crosslinking Agent for Resins: Utilized to introduce carboxylic acid functionality into alkyd, polyester, or acrylic resin systems, enabling crosslinking for improved film hardness and chemical resistance.
• Textile & Leather Finishing: Applied in coatings and finishes for textiles and leather to provide water repellency, durability, and improved handle.
• Paper Sizing & Coating: Enhances the strength, water resistance, and printability of paper and paperboard products.
• Composite Materials: Acts as a compatibilizer or surface modifier in fiber-reinforced plastics and other composite materials to improve interfacial adhesion.

Basic Information

Product Name	Maleic Anhydride, Polymer With 2-Hydroxy-Ethyl Acrylate And Styrene
CAS No.	25265-97-8
Molecular Formula	(C4H2O3·C5H8O2·C8H8)x
Molecular Weight	Varies (Polymer)
Synonyms	Styrene, polymer with 2-hydroxyethyl acrylate and maleic anhydride; Maleic anhydride-styrene-2-hydroxyethyl acrylate terpolymer; 2-Hydroxyethyl acrylate-styrene-maleic anhydride polymer; HEA/St/MAH terpolymer; Acrylic-modified styrene-maleic anhydride copolymer; SMA copolymer with HEA; Reactive functional copolymer; Carboxylated acrylic-styrene copolymer
EINECS	Contact for details

Quality Control

Our production of Maleic Anhydride, Polymer With 2-Hydroxy-Ethyl Acrylate And Styrene adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as acid value, hydroxyl value, molecular weight distribution, viscosity, and glass transition temperature (Tg). Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep away from heat sources and incompatible materials. This product may be hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption which can affect performance.

Specification

Item	Specification
Appearance	White to off-white flakes or powder
Acid Value (mg KOH/g)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Solid Content (%)	≥ 98.0
Glass Transition Temp (Tg)	Contact for details
Viscosity (Solution)	Contact for details
Identification (IR)	Conforms

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