A chemical reaction resulting in the breaking of skeletal bonds.
chain scission : A chemical reaction resulting in the breaking of skeletal bond.[ 1]
Chain scission is a term used in polymer chemistry describing the degradation of a polymer main chain .[ 2] It is often caused by thermal stress (heat) or ionizing radiation (e.g. light, UV radiation or gamma radiation ), often involving oxygen . During chain cleavage , the polymer chain is broken at a random point in the backbone to form two - mostly still highly molecular - fragments.[ 3]
Depolymerization , on the other hand, is the elimination of low molecular weight substances (monomers , dimers and suchlike) from a polymer.[ 4]
References
^ "chain scission" . Gold Book . IUPAC. doi :10.1351/goldbook.C00961 . Retrieved 1 April 2024 .
^ IUPAC , Compendium of Chemical Terminology , 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "chain scission ". doi :10.1351/goldbook.C00961
^ Sebastian Kotzenburg, Michael Maskus, Oskar Nuyken: Polymere – Synthese, Eigenschaften und Anwendungen , Springer Spektrum, 2014, S. 440–441, ISBN 978-3-642-34772-6 .
^ Otto-Albrecht Neumüller (Herausgeber): Römpps Chemie Lexikon , Frank’sche Verlagshandlung, Stuttgart, 1983, 8. Auflage, S. 891, ISBN 3-440-04513-7 .