polyketone

https://doi.org/10.1351/goldbook.15286
Polymer composed of macromolecules containing keto groups as linkages in the backbone: \[\ce{-CO\bond{-}}\]
Notes:
  1. A polyketone containing in addition to keto groups also ether linkages in the main chains is usually referred to as a polyetherketone.
    polyketone
  2. A polymer containing only pendent keto groups, such as a polyvinyl ketone, as well as a polymer containing main-chain carbonyl groups directly linked to a main-chain heteroatom, such as a polyester or a polyamide, is excluded.
Source:
PAC, 2009, 81, 1131. (Glossary of class names of polymers based on chemical structure and molecular architecture (IUPAC Recommendations 2009)) on page 1159 [Terms] [Paper]