Graph theory of viscoelasticities for polymers with starshaped, multiple‐ring and cyclic multiple‐ring molecules

The graph method of linear viscoelasticities of polymers has been extended to calculate the relaxation spectra and shrinking factors of star‐shaped molecules, multiple‐ring molecules and cyclic multiple‐ring molecules. The results obtained are general solutions, by which the special case can be easily calculated and compared with literature if available. This shows that graph theory is very versatile in theoretically treating linear viscoelasticities.