Description

Poly(Styrene-Co-Maleic Acid), Partial Propyl Ester, Cumene Terminated is a synthetic copolymer designed to offer a unique balance of hydrophobic and hydrophilic properties, making it a versatile functional polymer. This product is engineered to act as an effective dispersant, emulsifier, or compatibilizer in complex formulations. It is particularly valuable for industries requiring advanced polymeric additives to modify surface properties and enhance material performance.

Application

• Pigment and Filler Dispersion: Acts as a high-performance dispersing agent for inorganic pigments and fillers in coatings, inks, and masterbatch production.
• Emulsion Stabilization: Used as an emulsifier or stabilizer in the polymerization of styrenic and acrylic monomers for latex production.
• Compatibilizer for Polymer Blends: Improves the compatibility and interfacial adhesion between immiscible polymers, such as polystyrene and polyolefin blends.
• Surface Modification Agent: Modifies the surface properties of particles and fibers for improved wetting and adhesion in composite materials.
• Rheology Modifier: Influences the flow and viscosity characteristics of complex fluid systems in specialty coatings and adhesives.
• Pharmaceutical and Cosmetic Excipient: Potential use as a solubilizer or carrier for active ingredients in controlled-release formulations and topical applications.

Basic Information

Product Name	Poly(Styrene-Co-Maleic Acid), Partial Propyl Ester, Cumene Terminated
CAS No.	160611-48-3
Molecular Formula	(C11H10O3 · C3H6O)n (Representative)
Molecular Weight	Variable (Polymer)
Synonyms	Styrene Maleic Anhydride Copolymer, Propyl Ester; Cumene-Terminated SMA Copolymer; SMA Partial Propyl Ester; Poly(styrene-alt-maleic acid) partial propyl ester; SMA Ester Resin; SMA RP; Styrene Maleic Acid Propyl Ester Copolymer; SMA Copolymer Derivative
EINECS	Contact for details

Quality Control

Our production of Poly(Styrene-Co-Maleic Acid), Partial Propyl Ester, Cumene Terminated adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including acid number, esterification degree, molecular weight distribution, and residual monomer content. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance 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 the container tightly sealed when not in use to prevent moisture absorption, which may affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Acid Value	Contact for details
Esterification Degree	Contact for details
Weight Average Molecular Weight (Mw)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Residual Solvent	Meets ICH guidelines
Loss on Drying	< 2.0 %

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