Description

Styrene·Acrylonitrile·2-Isopropenyl-2-Oxazoline Copolymer is a reactive terpolymer engineered to combine the structural properties of styrene-acrylonitrile (SAN) with the versatile reactivity of an oxazoline functional group. This unique composition matters for industrial formulators seeking to enhance material compatibility, adhesion, and chemical resistance in polymer blends and composites. It is primarily needed by manufacturers in the coatings, adhesives, and advanced plastics industries, where it acts as a compatibilizer, adhesion promoter, or a reactive modifier to tailor final product performance.

Application

• Polymer Compatibilizer: Improves the miscibility and interfacial adhesion in blends of otherwise immiscible polymers, such as SAN with polyamides or polyesters.
• Adhesion Promoter: Enhances the bonding of coatings, inks, and adhesives to difficult substrates, including metals and treated plastics.
• Reactive Modifier for Engineering Plastics: Incorporated into SAN, ABS, or other thermoplastic matrices to introduce cross-linking sites or improve chemical resistance.
• Fiber and Filler Coupling Agent: Used in composite materials to improve the interfacial bond between polymer matrices and glass fibers or mineral fillers.
• Cross-linking Agent: Utilized in thermoset formulations where the oxazoline group can react with carboxylic acids, anhydrides, or amines to form a cross-linked network.
• Surface Modification: Applied as a primer or additive to modify surface properties for improved printability, wettability, or corrosion resistance.

Basic Information

Product Name	Styrene·Acrylonitrile·2-Isopropenyl-2-Oxazoline Copolymer
CAS No.	100920-92-1
Molecular Formula	(C8H8·C3H3N·C6H9NO)x
Molecular Weight	Varies (Polymer)
Synonyms	SAN-Oxazoline Copolymer; Styrene Acrylonitrile Vinyl Oxazoline Terpolymer; Reactive SAN Copolymer; 2-Isopropenyl-2-oxazoline copolymer with styrene and acrylonitrile; Oxazoline-functional SAN; SAN-g-Oxazoline; Modifier A; Compatibilizer SAO
EINECS	Contact for details

Quality Control

Our Styrene·Acrylonitrile·2-Isopropenyl-2-Oxazoline Copolymer is manufactured under a strict quality management system. Each batch is characterized for critical parameters including monomer composition, oxazoline content, molecular weight, and thermal properties to ensure consistent performance as a polymer modifier. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and R&D processes.

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 away from strong acids and strong bases.

Specification

Item	Specification
Appearance	White to off-white granules or powder
Identification (IR)	Conforms to structure
Oxazoline Content	1.0 - 10.0 % (Typical)
Acrylonitrile Content	20 - 35 %
Residual Monomers	< 0.5 %
Moisture Content	< 1.0 %
Glass Transition Temperature (Tg)	90 - 120 °C
Melt Flow Index (MFI)	5 - 30 g/10min (Condition Specific)

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