block homopolymer

https://doi.org/10.1351/goldbook.11536
Homopolymer that is composed of macromolecules comprising blocks that have at least one constitutional or configurational feature which is not present in the adjacent portions.
Source:
PAC, 2016, 88, 1073. (Source-based nomenclature for single-strand homopolymers and copolymers (IUPAC Recommendations 2016)) on page 1078 [Terms] [Paper]