Polyethylenimine

Polyethylenimine
Names
IUPAC name
Poly(iminoethylene)
Other names
Polyaziridine, Poly[imino(1,2-ethanediyl)]
Identifiers
ChemSpider
  • none
ECHA InfoCard 100.123.818 Edit this at Wikidata
Properties
(C2H5N)n, linear form
Molar mass 43.04 (repeat unit), mass of polymer variable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Polyethylenimine (PEI) or polyaziridine is a polymer with repeating units composed of the amine group and two carbon aliphatic CH2CH2 spacers. Linear polyethyleneimines contain all secondary amines, in contrast to branched PEIs which contain primary, secondary and tertiary amino groups. Totally branched, dendrimeric forms were also reported.[1] PEI is produced on an industrial scale and finds many applications usually derived from its polycationic character.[2]

Linear PEI fragment
Typical branched PEI fragment
PEI dendrimer generation 4
  1. ^ Yemul, Omprakash; Imae, Toyoko (2008). "Synthesis and characterization of poly(ethyleneimine) dendrimers". Colloid & Polymer Science. 286 (6–7): 747–752. doi:10.1007/s00396-007-1830-6. S2CID 98538201.
  2. ^ Davidson, Robert L.; Sittig, Marshall (1968). Water-soluble resins. Reinhold Book Corp. ISBN 978-0278916135.