Cover Image, Volume 56, Issue 18

In their paper on page 1251, Tsutomu Furuya and colleagues used a computer simulation to study structure formation and rheological properties of mixtures of telechelic and monofunctional associating polymers. The mixtures form the transient networks, closely packed spherical micelles, and wormlike micelles. Relationships between the structural change and the rheological properties are calculated. The cover shows the wormlike micellar structures under the shear flow. With increasing shear rate, the shear viscosity first decreases by the orientation of the wormlike micelles. At large shear rates, the mixtures show the second shear thinning initiated by the transformation from the bridge chains (blue polymers) to the loop chains (red polymers). (DOI: 10.1002/polb.24716 )