Rouse theory

https://doi.org/10.1351/goldbook.12266
Molecular theory for treating polymer chain dynamics based on the bead-spring model assuming the beads (segments) have zero excluded volume and there is no hydrodynamic interaction between the beads.
Source:
PAC, 2015, 87, 71. (Definitions of terms relating to individual macromolecules, macromolecular assemblies, polymer solutions, and amorphous bulk polymers (IUPAC Recommendations 2014)) on page 105 [Terms] [Paper]