Polyethyleneimine (PEI) is a highly branched polymer composed of ethyleneimine monomers. With its long-chain structure, PEI exhibits excellent adhesive properties, making it an ideal choice for various applications, including paper coatings, textiles, adhesives, and surface modification. Furthermore, PEI’s cationic nature allows it to effectively bind to negatively charged substrates, enhancing its versatility in different industries.
In addition to its adhesive properties, PEI also showcases exceptional buffering capabilities, which are beneficial in multiple areas such as wastewater treatment, CO2 capture, and catalysis. Its high molecular weight allows for efficient and selective adsorption, making it a valued component in the purification of gases and liquids.