Methoxy polyethylene glycol

Application Fields

Building Materials Industry (Core Application):

Polycarboxylate Superplasticizer Raw Material: Reacts with acrylic acid to generate MPEG acrylate, used in concrete superplasticizers to improve dispersibility, water reduction rate (>30%), and durability. Widely used in high-speed railways, bridges, and other engineering projects.

Reinforcing Agent: Improves cement particle dispersibility, reduces water consumption, and increases concrete strength (above C60).

Pharmaceuticals and Biomedicine:

Drug Delivery Systems:

PEGylation Technology: Couples with drug molecules via hydroxyl groups (e.g., PEGylated interferon, PEGylated paclitaxel) to extend in vivo circulation time and reduce toxic side effects.

PROTAC Linker: Serves as a linker for Proteolysis Targeting Chimeras (PROTACs) for cancer treatment.

Biomaterials: Copolymerized with polycaprolactone (PCL) to prepare degradable scaffolds for tissue engineering.

Cosmetics and Personal Care:

Humectants and Thickeners: Low molecular weight products (e.g., MPEG 350) are used in emulsions and toothpaste; high molecular weight products (e.g., MPEG 5000) are used in lipsticks and foundations.

Mild and Non-irritating: Complies with cosmetic raw material safety standards and is suitable for sensitive skin care.

Surfactants and Textile Auxiliaries:

Nonionic Surfactants: Prepared via ethoxylation reactions, used in detergents and emulsifiers; HLB value is adjustable.

Textile Printing and Dyeing Auxiliaries: Improve fabric wettability and enhance dye dispersibility.

Environmental Protection:

Biodegradable Materials: Copolymerized with biodegradable polyesters (e.g., PLA) to prepare environmentally friendly packaging materials.

Green Synthesis Solvents: Used as reaction media to replace traditional organic solvents, reducing pollution.

CAS NO: 9004-74-4

EC NO:

Molecular Formula: (C₂H₄O)mult·CH₄O

Molecular Weight: 76.0942

Aliases: Polyethylene glycol monomethyl ether; Polyethylene glycol methyl ether; Polyethylene glycol monomethyl ether MPEG-350;

Structure: