Cover Picture: Macromol. Mater. Eng. 1/2007
Building a proper molecular-level description of polymer flow is a formidable task: How do entangled chains respond to shear deformation? Can the tube model depict elastic breakup? How to walk on this two-way road linking molecular structures to macroscopic behavior? Polymer is like elastic noodles. PTV (particle-tracking velocimetry) helps us detect their averaged flow responses. Further details can be found in the article by S.-Q. Wang on page 15.
Wang, Shi-Qing, "Cover Picture: Macromol. Mater. Eng. 1/2007" (2007). Polymer Science Faculty Research. 572.