Description

Poly(Ethylene Glycol) (N) Monomethacrylate is a versatile methacrylic ester derivative of polyethylene glycol, characterized by its reactive methacrylate group and hydrophilic PEG chain. This bifunctional structure makes it an essential macromonomer and reactive intermediate for creating polymers with tailored properties. It is primarily used by formulators and researchers in the biomedical, personal care, and specialty coatings industries to develop advanced materials with controlled hydrophilicity, biocompatibility, and functionality.

Application

• Hydrogel Synthesis: A key monomer for creating cross-linked hydrogels used in contact lenses, wound dressings, and drug delivery systems.
• Bioconjugation & Drug Carriers: Used to PEGylate proteins, peptides, and nanoparticles to enhance solubility, stability, and circulation time in pharmaceutical applications.
• Surface Modification: Imparts permanent hydrophilic and protein-resistant properties to surfaces for medical devices and diagnostic equipment.
• UV-Curable Coatings & Inks: Serves as a reactive diluent and modifier in formulations for low-irritation, flexible coatings and inks.
• Personal Care Products: Incorporated into polymer backbones for hair fixatives, skincare products, and cosmetics to improve film-forming and moisturizing characteristics.
• Adhesives & Sealants: Modifies the properties of acrylic-based adhesives to enhance flexibility and moisture tolerance.

Basic Information

Product Name	Poly(Ethylene Glycol) (N) Monomethacrylate
CAS No.	25736-86-1
Molecular Formula	C(n+5)H(2n+8)O4 (n = number of ethylene oxide units)
Molecular Weight	Variable (depends on PEG chain length 'n')
Synonyms	PEG Monomethacrylate; Poly(ethylene glycol) methyl ether methacrylate; Methoxy PEG Methacrylate; PEGMA; MPEG-MA; 2-Methyl-2-propenoic acid 2-[2-(2-methoxyethoxy)ethoxy]ethyl ester; Ethylene glycol methyl ether methacrylate (oligomeric); Poly(oxy-1,2-ethanediyl), α-(2-methyl-1-oxo-2-propen-1-yl)-ω-methoxy-
EINECS	Contact for details

Quality Control

Our Poly(Ethylene Glycol) (N) Monomethacrylate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in molecular weight distribution, purity, and functional group content. Certificates of Analysis (COA) detailing assay, residual monomer, and other critical parameters 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption and potential polymerization. Keep away from heat and incompatible materials such as strong oxidizers and initiators.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (Methacrylate content)	≥ 95.0%
Average Molecular Weight (n-value)	As per grade (e.g., n=4, 9, 23, etc.)
Water Content	≤ 0.5%
Inhibitor (MEHQ)	100 - 300 ppm
Residual Monomer (Methacrylic Acid)	≤ 0.5%

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