homogeneous particle

https://doi.org/10.1351/goldbook.14297
Particle that is spatially uniform with respect to chemical composition of the constituent polymer(s).
Note: A particle that is chemically homogeneous but has a radial distribution function of composition that is not step-like is not a homogeneous particle. Similarly, a block-copolymer micelle is not a homogeneous particle, although all constituent copolymer molecules can have identical compositions.
Source:
PAC, 2011, 83, 2229. (Terminology of polymers and polymerization processes in dispersed systems (IUPAC Recommendations 2011)) on page 2234 [Terms] [Paper]