onion morphology

https://doi.org/10.1351/goldbook.OT07305
Multiphase @MT07285@ of roughly spherical shape that comprises alternating layers of different polymers arranged concentrically, all layers being of similar thickness.
Source:
PAC, 2004, 76, 1985. (Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004)) on page 2004 [Terms] [Paper]