Description

Polyethylene-Block-Poly(Ethylene Glycol) is a non-ionic amphiphilic block copolymer, also known as a polymeric surfactant. This compound is valued for its ability to modify surface properties and act as a compatibilizer or stabilizer in complex formulations. It is essential for industries requiring advanced material performance, particularly in pharmaceuticals, specialty polymers, and nanotechnology.

Application

• As a polymeric surfactant and stabilizing agent in emulsion and dispersion polymerization.
• As a surface modifier and compatibilizer in polymer blends and composites to improve material properties.
• For the functionalization of nanoparticles (e.g., gold, silica) to enhance colloidal stability and biocompatibility.
• In the formulation of drug delivery systems, such as micelles and liposomes, for controlled release applications.
• As a lubricity and anti-fouling coating agent for biomedical devices and membranes.
• In the production of specialty adhesives, inks, and coatings to regulate rheology and surface wetting.

Basic Information

Product Name	Polyethylene-Block-Poly(Ethylene Glycol)
CAS No.	251553-55-6
Molecular Formula	Contact for details
Molecular Weight	Variable (depends on block lengths)
Synonyms	PE-b-PEG; Poly(ethylene)-block-poly(ethylene glycol); Polyethylene-block-poly(oxyethylene); Amphiphilic PEG-PE block copolymer; PEG-PE Diblock Copolymer; Polyoxyethylene-block-polyethylene; Non-ionic block copolymer surfactant; Poly(ethylene glycol)-block-polyethylene
EINECS	Contact for details

Quality Control

Our Polyethylene-Block-Poly(Ethylene Glycol) is produced under a strict quality management system. Each batch is characterized to ensure consistent block ratio, molecular weight distribution, and purity. Certificates of Analysis (COA) are provided, detailing key parameters such as assay, residual solvent content, and functional performance tests.

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 under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture uptake and potential degradation.

Specification

Item	Specification
Appearance	White to off-white waxy solid or powder
Identification (IR)	Conforms to structure
Assay (Block Copolymer Content)	≥ 95%
Polyethylene Block Molecular Weight	As per grade (e.g., 1k-10k Da)
Poly(Ethylene Glycol) Block Molecular Weight	As per grade (e.g., 1k-20k Da)
Polydispersity Index (PDI)	≤ 1.2 (by GPC)
Residual Moisture (KF)	≤ 1.0%
Residual Solvents (GC)	Meets ICH guidelines

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