Description

Poly(n-Acetylethyleneimine)-Polyethyleneoxide-Poly(n-Acetylethyleneimine) is a triblock copolymer consisting of a central hydrophilic polyethylene oxide (PEO) segment flanked by two poly(N-acetylethyleneimine) blocks. This unique amphiphilic structure provides exceptional performance as a non-ionic surfactant, stabilizer, and compatibilizer in advanced formulations. It is particularly valued in industries requiring precise control over surface activity and colloidal stability. Key sectors that utilize this polymer include pharmaceutical development, specialty coatings, and advanced material science for its ability to modify interfaces and enhance product performance.

Application

• Pharmaceutical Excipient: Used as a stabilizer and solubilizing agent in drug delivery systems, including micelles and nanoparticles for controlled release.
• Polymer Additive: Acts as a compatibilizer and processing aid to improve the blendability and mechanical properties of polymer mixtures.
• Surface Modification Agent: Employed in coatings and surface treatments to alter wettability, reduce friction, or provide anti-fog properties.
• Dispersant & Stabilizer: Effective in stabilizing emulsions, suspensions, and colloidal systems in agrochemicals, paints, and inks.
• Biomedical Research: Utilized in the fabrication of hydrogels, bio-conjugates, and other biomaterials due to its biocompatibility and tunable properties.
• Personal Care Formulations: Functions as an emulsifier and conditioning agent in high-performance cosmetic and skincare products.

Basic Information

Product Name	Poly(n-Acetylethyleneimine)-Polyethyleneoxide-Poly(n-Acetylethyleneimine)
CAS No.	124912-94-3
Molecular Formula	Contact for details
Molecular Weight	Variable (Grade Dependent)
Synonyms	PAEI-PEO-PAEI Triblock Copolymer; Poly(N-acetylethyleneimine)-b-PEO-b-Poly(N-acetylethyleneimine); N-Acetyl Polyethylenimine-PEO Block Copolymer; PEO-PAEI Diblock (common misnomer for triblock); Acetylated PEI-PEG- Acetylated PEI; Poly(2-ethyl-2-oxazoline)-PEO-Poly(2-ethyl-2-oxazoline) (related structural analog); Hydrophilic-Hydrophilic Block Copolymer; Non-ionic Polymeric Surfactant
EINECS	Contact for details

Quality Control

Our Poly(n-Acetylethyleneimine)-Polyethyleneoxide-Poly(n-Acetylethyleneimine) is manufactured under a strict quality management system. Each batch undergoes comprehensive analysis to ensure consistency in molecular weight distribution, block ratio, and purity. Certificates of Analysis (COA) documenting key parameters are available upon request. We can support compliance needs for research and industrial applications, with quality protocols adaptable to specific customer requirements.

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 product is hygroscopic (moisture-sensitive). To prevent degradation and clumping, the container must be kept sealed and protected from atmospheric moisture. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	White to off-white solid or waxy solid
Identification (IR)	Conforms to structure
Assay (Block Copolymer Content)	≥ 95.0 %
Molecular Weight (Mn)	As per grade (e.g., 2000, 5000, 10000 Da)
PEO Block Weight %	40% - 80% (Grade specific)
Moisture Content (KF)	≤ 2.0 %
Residual Solvents (GC)	Meets ICH guidelines

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