Description

Polyethyleneimine CAS NO 9002-98-6 is a highly branched cationic polymer with a high density of amine groups. This unique structure makes it an exceptionally versatile and effective agent for binding, modifying, and stabilizing various materials. It is a critical component for industries requiring precise surface modification, flocculation, or adhesion promotion. Key sectors that rely on this polymer include water treatment, paper manufacturing, biotechnology, and the production of specialty coatings and adhesives.

Application

• Flocculant and Retention Aid in water treatment and paper manufacturing processes.
• Surface Modifier and Adhesion Promoter for coatings, inks, and adhesives.
• Complexing Agent for heavy metal ion removal in environmental remediation.
• Biomolecule Immobilization and surface functionalization in biosensor and diagnostic kit development.
• Gene Transfection Reagent component in biotechnology and pharmaceutical research.
• Crosslinking Agent for polymers and resins to enhance mechanical properties.
• Dye Fixative and improving color fastness in the textile industry.
• Shrinkproofing Agent for wool and other protein-based fibers.

Basic Information

Product Name	Polyethyleneimine
CAS No.	9002-98-6
Molecular Formula	(C2H5N)n
Molecular Weight	Variable (typically 600 - 1,000,000 g/mol)
Synonyms	PEI; Polyaziridine; Poly(iminoethylene); Polyethylenimine; Poly(ethylene imine); Aziridine homopolymer; Polymin; Epomin; Lupasol
EINECS	Contact for details

Quality Control

Our Polyethyleneimine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in critical parameters such as molecular weight distribution, amine content, viscosity, and purity. Certificates of Analysis (COA) documenting these specifications 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). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture and carbon dioxide.

Specification

Item	Specification
Appearance	Viscous liquid or solid
Form	Branched
Assay (Nitrogen Content)	Contact for details
Molecular Weight (Average)	Specified grade (e.g., 600, 25k, 750k)
Viscosity	Grade-dependent
pH (Aqueous Solution)	~10-11 (typical)
Solubility	Water, alcohols

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