Description

Styrene Maleic Anhydride Copolymer is a versatile synthetic polymer formed from styrene and maleic anhydride monomers. This compound is valued for its excellent thermal stability, film-forming properties, and ability to act as a compatibilizer and rheology modifier in various formulations. It is essential for manufacturers in the coatings, adhesives, plastics, and personal care industries seeking to enhance product performance and durability.

Application

• Coatings and Inks: Used as a binder and film-forming agent to improve adhesion, gloss, and chemical resistance in industrial and decorative coatings, as well as printing inks.
• Adhesives and Sealants: Functions as a tackifier and rheology modifier to enhance bonding strength, cohesion, and application properties.
• Plastics and Polymer Modification: Acts as a compatibilizer and impact modifier in polymer blends and composites, improving mechanical properties and processability.
• Personal Care and Cosmetics: Employed as a film former and styling agent in hair sprays, gels, and other cosmetic formulations.
• Paper and Textile Sizing: Used to improve strength, stiffness, and water resistance in paper coatings and textile treatments.
• Oilfield Chemicals: Serves as a fluid loss additive and viscosity control agent in drilling mud formulations.
• Pharmaceutical Excipients: Utilized in controlled-release drug delivery systems as a matrix-forming polymer.

Basic Information

Product Name	Styrene Maleic Anhydride Copolymer
CAS No.	26762-29-8
Molecular Formula	(C8H8·C4H2O3)x
Molecular Weight	Varies (Polymer)
Synonyms	Styrene-Maleic Anhydride Resin; SMA Copolymer; Maleic Anhydride-Styrene Copolymer; Poly(Styrene-alt-Maleic Anhydride); SMA Resin; SMA Polymer; Styrene/Maleic Anhydride Polymer; 2,5-Furandione, polymer with ethenylbenzene
EINECS	Contact for details

Quality Control

Our Styrene Maleic Anhydride Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including molecular weight distribution, acid value, residual monomer content, and thermal properties to ensure consistency and performance. Certificates of Analysis (COA) 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or beads
Identification (IR)	Conforms
Acid Value	Contact for details
Molecular Weight (Mw)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Residual Styrene	< 0.1%
Residual Maleic Anhydride	< 0.1%
Moisture Content	< 1.0%

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