Polymer electrolyte membrane (PEM) fuel cells employ a polymer membrane with acid ... just like the absorption of water by a sponge is restricted when the sponge is confined between two plates. The ...

Sergei Sheiko of North Carolina at Chapel Hill will first delve into the nuanced properties of polymer networks, including their modulus, strain-stiffening behavior, and swelling tendencies, all of ...

First, they submerged the samples in a hydrogel solution containing small compounds that behave as liquid until they link up into polymer chains that absorb water and congeal into a gel. These ...

However, polymer networks offer a unique solution ... viologen allows precise control over electron transfer by inducing swelling or shrinking at a constant temperature. Redox changes in the ...