Description

2-Propenoic Acid,2-Methyl-,Oxiranylmethyl Ester, Polymer With Ethenylbenzene is a specialized copolymer of glycidyl methacrylate and styrene, known by its CAS number 25167-42-4. This material is engineered to provide a unique combination of polymer backbone toughness with highly reactive epoxy functional groups, making it a versatile platform for advanced material synthesis. It is primarily utilized in the formulation of high-performance coatings, adhesives, and composite materials where enhanced chemical resistance, adhesion, and cross-linking density are critical.

Application

• Reactive Modifier for Thermoset Resins: Used as a cross-linking agent or toughening modifier in epoxy, polyester, and acrylic resin systems to improve mechanical properties and chemical resistance.
• High-Performance Coatings: A key component in industrial, marine, and automotive coatings requiring excellent durability, adhesion to various substrates, and corrosion protection.
• Structural Adhesives & Sealants: Imparts strength and environmental stability to adhesives used in construction, aerospace, and automotive assembly.
• Composite Materials: Serves as a matrix resin or interfacial coupling agent in fiber-reinforced plastics (FRP) and other composite structures.
• Electronic Encapsulants: Employed in potting compounds and encapsulants for electronic components due to its good electrical insulation and adhesion properties.
• 3D Printing Resins: Used in the formulation of photopolymer resins for stereolithography (SLA) and other additive manufacturing processes.

Basic Information

Product Name	2-Propenoic Acid,2-Methyl-,Oxiranylmethyl Ester, Polymer With Ethenylbenzene
CAS No.	25167-42-4
Molecular Formula	(C7H10O3·C8H8)x
Molecular Weight	Varies (Polymer)
Synonyms	Glycidyl Methacrylate-Styrene Copolymer; GMA-Styrene Copolymer; Poly(styrene-co-glycidyl methacrylate); Styrene-Glycidyl Methacrylate Resin; Epoxy-Functional Styrene Acrylic; 2-Methyl-2-propenoic acid oxiranylmethyl ester polymer with ethenylbenzene; Reactive Acrylic-Styrene Copolymer; GMA/Styrene
EINECS	Contact for details

Quality Control

Our Glycidyl Methacrylate-Styrene Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including epoxy equivalent weight (EEW), molecular weight distribution, residual monomer content, and glass transition temperature (Tg) to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) detailing these specifications are available upon request.

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); keep the container tightly sealed when not in use to prevent moisture absorption, which can affect reactivity. Keep away from heat sources and incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white beads or powder
Epoxy Equivalent Weight (EEW)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Molecular Weight (Mw)	Contact for details
Residual Monomer (GMA)	< 0.5%
Residual Monomer (Styrene)	< 0.1%
Moisture Content	< 1.0%

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