Description

Methoxy Polyethylene Glycol Methacrylate-Styrene Polymer is a high-performance amphiphilic copolymer designed for advanced material science applications. This compound is valued for its unique ability to combine the hydrophilic properties of polyethylene glycol with the robust structural characteristics of methacrylate and styrene monomers. It is essential for formulators and researchers in the pharmaceutical, coatings, and specialty chemical industries seeking to modify surface properties, enhance biocompatibility, or create stable polymeric matrices. The material, identified as CAS NO 9081-45-2, offers a versatile platform for developing tailored solutions.

Application

• Pharmaceutical Excipient: Used as a solubilizer, stabilizer, or matrix-forming agent in controlled-release drug delivery systems.
• Surface Modifier for Biomaterials: Imparts hydrophilic and protein-resistant properties to medical devices and implants to improve biocompatibility.
• Polymer Additive for Coatings: Enhances dispersion, film formation, and surface wetting in water-based paints, inks, and industrial coatings.
• Stabilizer for Emulsions and Dispersions: Acts as a non-ionic surfactant or protective colloid in the formulation of agrochemicals and personal care products.
• Hydrogel Synthesis: Serves as a key monomer or crosslinker component for creating absorbent and stimuli-responsive hydrogels.
• Compatibilizer for Polymer Blends: Improves the miscibility and interfacial adhesion in blends of hydrophobic and hydrophilic polymers.

Basic Information

Item	Detail
Product Name	Methoxy Polyethylene Glycol Methacrylate-Styrene Polymer
CAS No.	9081-45-2
Molecular Formula	(C5H8O2.C8H8.C2H4O)n
Molecular Weight	Variable (Polymer)
Synonyms	MPEG-MA-St Polymer; Poly(ethylene glycol) methyl ether methacrylate-co-styrene; Methoxy PEG Methacrylate Styrene Copolymer; PEGMA-St Copolymer; 2-Methyl-2-propenoic acid 2-hydroxyethyl ester, polymer with ethenylbenzene and α-(2-methyl-1-oxo-2-propen-1-yl)-ω-methoxypoly(oxy-1,2-ethanediyl); MPEGMA-St; Poly(MPEGMA-co-St); MPEG Methacrylate Styrene Terpolymer
EINECS	Contact for details

Quality Control

Our Methoxy Polyethylene Glycol Methacrylate-Styrene Polymer is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent molecular weight distribution, composition, and purity. Certificates of Analysis (COA) detailing key parameters such as assay, residual monomer content, and functional group analysis are provided and 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) and should be kept under an inert atmosphere such as nitrogen for long-term storage to prevent oxidation and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (NMR/GPC)	≥ 95% (as copolymer)
Molecular Weight (Mw)	Customized (e.g., 2,000 - 20,000 Da)
Polydispersity Index (PDI)	< 1.5 (Typical)
Residual Monomer	< 0.5% (by HPLC)
Moisture Content	< 1.0% (by KF Titration)

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