Poly(Styrene-Co-Maleic Acid)Butyl Ester CAS NO 54991-66-1

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CAS No.:54991-66-1

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Poly(Styrene-Co-Maleic Acid)Butyl Ester is a synthetic copolymer derived from styrene and maleic anhydride, subsequently esterified with butanol. This versatile polymer is valued for its unique combination of hydrophobic styrene segments and the functional, modifiable groups of the maleic acid butyl ester, enabling it to act as a compatibilizer, dispersant, and rheology modifier. It is a critical material for formulators and researchers in the coatings, adhesives, and advanced material sectors seeking to enhance performance and stability.

Application

As a compatibilizer and coupling agent in polymer blends and composites to improve interfacial adhesion.
As a dispersing agent and grinding aid for pigments and fillers in industrial coatings and inks.
As a rheology modifier and thickener in adhesive formulations and sealants.
As a surface modifier for particles and fibers to alter surface energy and improve compatibility with polymer matrices.
As a intermediate for further chemical modification, leveraging the reactive acid/ester functionality for synthesizing specialty polymers.
In research and development for creating advanced polymeric materials with tailored properties for specific industrial applications.

Basic Information


Product Name	Poly(Styrene-Co-Maleic Acid)Butyl Ester
CAS No.	54991-66-1
Molecular Formula	(C12H12O3 · C8H8)n (Copolymer)
Molecular Weight	Varies (Polymer)
Synonyms	Styrene Maleic Anhydride Butyl Ester Copolymer; SMA Butyl Ester; Poly(styrene-alt-maleic acid) butyl ester; Butyl ester of styrene-maleic acid copolymer; Styrene/Maleic Acid Butyl Ester Copolymer; SMABE; PS-MA-BE; 2-Butoxy-2-oxoethyl]-benzenee ethenyl-polymer
EINECS	Contact for details

Quality Control

Our Poly(Styrene-Co-Maleic Acid)Butyl Ester is manufactured under a strict quality management system. Each batch is characterized for critical parameters including acid value, ester content, molecular weight distribution, and glass transition temperature (Tg) to ensure consistent performance and batch-to-batch reproducibility. Comprehensive Certificates of Analysis (COA) detailing these specifications are provided and 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). Keep away from strong oxidizing agents and excessive heat. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Acid Value	Contact for details
Ester Content	Contact for details
Molecular Weight (Mw)	Contact for details
Glass Transition Temp (Tg)	Contact for details
Identification (IR)	Conforms
Residual Solvent	Meets internal specifications