| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Jack Zhong | -- | 130 | 2026-11-05 10:49:10 | | | |
| 2 | Jack Zhong | -12 word(s) | 118 | 2026-11-05 10:51:00 | | | | |
| 3 | Jack Zhong | Meta information modification | 118 | 2026-11-06 03:15:43 | | |
Star polymers are branched macromolecules in which several linear arms radiate from a single central node [1]. The node may be a small molecule, a crosslinked microgel or the residue of a multifunctional initiator, and its functionality fixes the number of arms [1]. Because the arms crowd the core, chain conformation departs from that of a linear polymer of equal molar mass, and the arm number enters the hydrodynamic radius and the melt viscosity [1]. A microgel core with polyelectrolyte arms gives a species that swells and contracts as a whole [2]. Star-block and miktoarm variants carry arms of different chemistry on the same node, so incompatible segments are held in one molecule [3].