Theory of polyampholyte solutions

We consider polyampholyte polymers containing both positive and negative monomers randomly dispersed along the chain. Neutral chains collapse into a globule due to attractive electrostatic interactions. The behavior of the charges inside the globule is similar to that of charges in a small volume of simple electrolyte. A screening length κ−1p coming from the polymeric charge may be defined as in Debye–Hückel theory. The internal structure of …