Sequence-defined polymer (Syn. sequence-specific polymer, sequence-ordered polymer) is a uniform macromolecule with an exact chain-length and a perfectly defined sequence of monomers.[1][2] In other words, each monomer unit is at a defined position in the chain e.g. peptides, proteins, oligonucleotides.[3] Sequence-defined polymers constitute therefore a subclass of the field of sequence-controlled polymers.[1][4]
^Lehto, Taavi; Wagner, Ernst (2014-12-23). "Sequence-defined polymers for the delivery of oligonucleotides". Nanomedicine. 9 (18): 2843–2859. doi:10.2217/nnm.14.166. PMID25535686.