link

in polymer conjugate chemistry
https://doi.org/10.1351/goldbook.09029
Constitutive part of a conjugation that binds an active species to a substrate.
Note:
When release of the active species is desired, the link must be cleavable.
Source:
PAC, 2022, 94, 559. (Terminology and the naming of conjugates based on polymers or other substrates (IUPAC Recommendations 2021)) on page 562 [Terms] [Paper]