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Polyethyleneimine (PEI) is a highly branched cationic polymer known for its strong adhesive and binding properties, which make it widely applicable across industries.
Polyethyleneimine (PEI) is valued for its high charge density, allowing it to interact effectively with negatively charged surfaces, particles, and molecules.
Polyethyleneimine (PEI) is used in various applications, including water treatment, adhesives, biotechnology, and coatings due to its high reactivity and versatile properties.
CAS Number: 9002-98-6
EC Number: 618-498-9
Molecular Formula: (C2H5N)n
Molecular Weight: Variable, depending on polymer length
Synonyms: PEI, Poly(ethylenimine), Branched Polyethyleneimine, Polyamine, Polyiminoethylene, Ethylenimine Polymer, Adhesive Polymer
APPLICATIONS
Polyethyleneimine (PEI) is widely used in water treatment formulations, where it serves as a flocculant, helping to aggregate suspended particles and remove impurities from water through filtration or sedimentation.
Polyethyleneimine (PEI) is applied in adhesives for its high cationic charge, improving bonding strength between materials such as glass, metal, plastic, and wood, providing strong adhesion in industrial applications.
Polyethyleneimine (PEI) is found in coatings for paper and textiles, where it enhances dye, ink, and coating adhesion, improving the durability and appearance of the final product.
Polyethyleneimine (PEI) is an essential component in gene therapy and biotechnology, used as a transfection agent to facilitate the delivery of genetic material into cells for research and therapeutic applications.
Polyethyleneimine (PEI) is utilized in resin formulations, enhancing cross-linking and increasing the strength, durability, and chemical resistance of coatings and sealants in construction and industrial applications.
Polyethyleneimine (PEI) is a valuable retention aid in the paper and pulp industry, helping to improve the retention of fine particles and fillers, resulting in stronger, higher-quality paper.
Polyethyleneimine (PEI) is applied in metal treatment processes, improving the adhesion of metal coatings and enhancing corrosion resistance.
Polyethyleneimine (PEI) is used in the production of membranes for gas separation and water filtration, where its cationic properties improve selective permeability and efficiency in separation processes.
Polyethyleneimine (PEI) is widely used in antimicrobial coatings for medical devices, where it disrupts microbial cell membranes and provides long-lasting protection against bacteria.
Polyethyleneimine (PEI) is found in packaging films to improve barrier properties, preventing moisture, gas, and contaminants from penetrating and preserving the quality of packaged goods.
Polyethyleneimine (PEI) is applied as a binder for electrodes in fuel cells and batteries, enhancing stability and performance in energy storage systems.
Polyethyleneimine (PEI) is used in hair care products, where it promotes conditioning agents' adhesion, leaving hair softer, smoother, and more manageable.
Polyethyleneimine (PEI) is incorporated into water treatment solutions to remove heavy metals, as it binds to metal ions, purifying water and reducing environmental contamination.
Polyethyleneimine (PEI) is used in food processing, where it acts as a clarifying agent, removing suspended particles and improving product clarity.
Polyethyleneimine (PEI) is widely used in pharmaceutical formulations, enhancing drug delivery by improving stability and bioavailability.
Polyethyleneimine (PEI) is applied in coatings for automotive and aerospace industries, where it improves adhesion, corrosion resistance, and durability in harsh conditions.
Polyethyleneimine (PEI) is a preferred choice in personal care formulations for sensitive skin, as it provides mild thickening, conditioning, and film-forming properties without causing irritation.
DESCRIPTION
Polyethyleneimine (PEI) is a branched polymer with strong cationic properties, making it highly effective in binding to negatively charged surfaces, particles, and molecules.
Polyethyleneimine (PEI) is widely used in water treatment, biotechnology, adhesives, and coatings due to its excellent flocculation, bonding, and binding properties.
Polyethyleneimine (PEI) is particularly valued in gene delivery, where its strong cationic charge enables it to form complexes with DNA or RNA, facilitating genetic material transfer into cells.
Polyethyleneimine (PEI) is commonly used in formulations requiring strong adhesion, improving bond strength between substrates and ensuring the durability of end products.
Polyethyleneimine (PEI) is suitable for packaging applications, improving the quality and protection of packaged goods by enhancing film barrier properties.
Its compatibility with a range of industrial processes makes Polyethyleneimine (PEI) suitable for various applications, including the paper industry, wastewater treatment, and corrosion-resistant coatings.
Polyethyleneimine (PEI) is effective even in low concentrations, making it a cost-effective option in both industrial and pharmaceutical applications.
In pharmaceuticals, Polyethyleneimine (PEI) improves drug delivery systems, stabilizing active ingredients and enhancing their bioavailability.
Polyethyleneimine (PEI) is biodegradable, making it a sustainable choice in environmentally friendly formulations.
PROPERTIES
Chemical Formula: (C2H5N)n
Molecular Weight: Variable depending on polymer length
Common Name: Polyethyleneimine (PEI)
Appearance: Clear to light yellow viscous liquid or solid
Density: 1.03-1.05 g/cm³
Boiling Point: N/A
Melting Point: N/A
Solubility: Soluble in water, alcohols, and some organic solvents
Flash Point: N/A
Reactivity: Reacts with acids and anionic compounds
Chemical Stability: Stable under recommended storage conditions
Storage Temperature: Store in a cool, dry place away from strong acids and oxidizing agents
Vapor Pressure: Low
FIRST AID
Inhalation:
If Polyethyleneimine (PEI) is inhaled, move the affected person to fresh air immediately.
If breathing difficulties persist, seek immediate medical attention.
If the person is not breathing, administer artificial respiration.
Keep the affected person warm and at rest.
Skin Contact:
Wash the affected area with soap and water.
If skin irritation or rash develops, seek medical attention.
Eye Contact:
In case of eye contact, flush the eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids.
Seek immediate medical attention if irritation or redness persists.
Remove contact lenses if present and easy to do; continue rinsing.
Ingestion:
If Polyethyleneimine (PEI) is ingested, do not induce vomiting unless directed to do so by medical personnel.
Rinse the mouth thoroughly with water.
Seek immediate medical attention.
If the person is conscious, give small sips of water to drink.
Note to Physicians:
Treat symptomatically.
No specific antidote.
Provide supportive care.
HANDLING AND STORAGE
Handling:
Personal Protection:
Wear appropriate personal protective equipment (PPE) such as gloves and safety goggles when handling large quantities of Polyethyleneimine (PEI).
Use in a well-ventilated area to avoid inhalation of vapors or dust.
Ventilation:
Ensure adequate ventilation when handling large amounts of Polyethyleneimine (PEI) to control airborne concentrations below occupational exposure limits.
Avoidance:
Avoid direct contact with eyes and prolonged skin contact.
Do not eat, drink, or smoke while handling Polyethyleneimine (PEI).
Wash hands thoroughly after handling.
Spill and Leak Procedures:
Contain spills to prevent further release and minimize exposure.
Absorb with inert material (e.g., sand, vermiculite) and collect for disposal.
Dispose of in accordance with local regulations.
Storage:
Store Polyethyleneimine (PEI) in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizers.
Keep containers tightly closed when not in use to prevent contamination.
Store away from heat sources, direct sunlight, and moisture.
Handling Cautions:
Avoid inhalation of vapors and direct contact with skin and eyes.
Use explosion-proof equipment in areas where vapors may be present.
