Description

Styrene,Allyl Alcohol,Maleic Anhydride Polymer is a synthetic terpolymer derived from styrene, allyl alcohol, and maleic anhydride monomers. This versatile polymer is valued for its unique combination of properties, including excellent adhesion, film-forming capabilities, and reactivity due to pendant hydroxyl and anhydride/carboxylic acid groups. It is primarily sought by formulators in the coatings, adhesives, and specialty chemical industries for developing high-performance resins, cross-linking agents, and dispersants.

Application

• Coatings & Inks: Used as a resin modifier to enhance adhesion, gloss, and chemical resistance in industrial, automotive, and wood coatings, as well as in printing inks.
• Adhesives & Sealants: Acts as a key component in structural and pressure-sensitive adhesives, improving bond strength and thermal stability.
• Cross-linking Agent: The reactive hydroxyl and anhydride groups enable its use as a cross-linker for epoxy, polyester, and other thermosetting resin systems.
• Dispersant & Grinding Aid: Effective in pigment dispersion for coatings and plastics due to its polymeric structure and polar functional groups.
• Paper & Textile Sizing: Employed to improve strength, water resistance, and printability in paper coatings and textile treatments.
• Composite Materials: Serves as a compatibilizer or additive in fiber-reinforced plastics and other composite formulations to enhance matrix-fiber interaction.

Basic Information

Product Name	Styrene,Allyl Alcohol,Maleic Anhydride Polymer
CAS No.	35381-44-3
Molecular Formula	(C8H8·C3H6O·C4H2O3)x
Molecular Weight	Varies (Polymer)
Synonyms	Styrene/Allyl Alcohol/Maleic Anhydride Copolymer; SMA Terpolymer; Maleic Anhydride-Styrene-Allyl Alcohol Polymer; Poly(styrene-co-allyl alcohol-co-maleic anhydride); SMA Resin; Reactive Terpolymer; 2-Propen-1-ol, polymer with ethenylbenzene and 2,5-furandione
EINECS	Contact for details

Quality Control

Our Styrene,Allyl Alcohol,Maleic Anhydride Polymer is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including monomer content, acid value, hydroxyl value, viscosity, and glass transition temperature (Tg) to ensure batch-to-batch consistency and performance. Certificates of Analysis (COA) documenting these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption, which can affect reactivity.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Acid Value	Contact for details
Hydroxyl Value	Contact for details
Styrene Content	Contact for details
Maleic Anhydride Content	Contact for details
Viscosity (Solution)	Contact for details
Glass Transition Temp (Tg)	Contact for details
Moisture Content	< 1.0%

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