POLYETHYLENEIMINE CAS 9002-98-6
CAS : 9002-98-6
Formula : C2H5N
Mol. wt. : 43.07
EINECS : 618-346-1
| CAS | 9002-98-6 |
| Molecular formula | C2H5N |
| Molecular weight | 43.07 |
| EIENCS | 618-346-1 |
| Form | Liquid |
| Melting point | 59-60°C |
| boling point | 250 °C(lit.) |
| Density | 1.030 g/mL at 25 °C |
| Solubility | Soluble in water. |
| PKA | / |
| Color | Light yellow low |
| Storage temp | 2-8°C |
Polyethyleneimine is the most thoroughly studied material among polymer drug carriers, featuring both linear and branched structures. Its surface contains a large number of amino groups, which can be diversified in function through chemical modifications such as acetylation, carboxylation, hydroxylation, polyethylene glycol (PEG), oligosaccharides, targeted modification or Chemicalbook fluorescence labeling, etc. This product is a colorless, highly viscous liquid. Soluble in water and ethanol, hygroscopic, insoluble in benzene and acetone. Precipitation will occur when it meets sulfuric acid with a pH value lower than 2.4. The aqueous solution is positively charged and coagulates when formaldehyde is added.
It can be used as a wet strength agent for unbonded breathable paper, a retention aid and a pulping agent during the papermaking process, and can reduce the pulping degree of the pulp. Improve the dehydration capacity of paper. Increase the dryness of the paper by 1% to 4%. Increase production capacity by 5% to 20%.
1. High adhesion and adsorption properties: Amino groups can react with carboxyl groups to form hydrogen bonds. Amino groups can react with carboxyl groups to form ionic bonds. Amino groups can react with carbyl groups to form covalent bonds. Polyethyleneimine, due to its polar group (amino) and hydrophobic group (vinyl) structure, can combine with different substances. By taking advantage of these comprehensive bonding forces, it can be widely applied in fields such as adhesives, inks, coatings, and bonding agents.
2. Highly cationic polyethyleneimine exists in water as a polymeric cation, which can neutralize and adsorb all anionic substances and also chelate heavy metal ions. Taking advantage of its high cationic property, it can be applied in the fields of papermaking water treatment, electroplating solutions and dispersants. 3. Reactive polyethyleneimine, due to its highly reactive primary and secondary amines, can easily react with epoxides, acids, isocyanate compounds and acidic gases. This property can be utilized as an epoxy resin reactant, aldehyde adsorbent and dye fixative.
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