Synonyms
Imino-group-containing polymer; Poly(ethylene imine)s
Definition
Organic compounds containing two or more amino (−NH2) groups and/or imino (−NR–) groups.
Polyamines, i.e., aliphatic hydrocarbons containing two or more amino (−NH2) and/or imino (−NH–) groups, are ubiquitous in living systems. Polyamines play essential roles in biological processes as they contribute to cell division, nucleic acid synthesis, etc. Naturally occurring polyamines are acyclic with terminal amino groups. Figure 1 shows the structures of representative polyamines in the human body. On the other hand, synthetic polyamines are linear and branched polymers consisting of imino groups (−NR–: R = H, alkyl, aryl, etc.) in the main chain. Of note, polymers containing amino groups only in the side chain are not classified as polyamines.
Representative polyamines in a human body
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Morisaki, Y. (2015). Polyamines. In: Kobayashi, S., Müllen, K. (eds) Encyclopedia of Polymeric Nanomaterials. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29648-2_250
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