non-uniform polymer

https://doi.org/10.1351/goldbook.N04206
A
polymer
comprising molecules non-uniform with respect to
relative molecular mass
or
constitution
or both.
See:
uniform polymer (Note 3)
Source:
PAC, 1996, 68, 2287. (Glossary of basic terms in polymer science (IUPAC Recommendations 1996)) on page 2302 [Terms] [Paper]