## Randomly charged polymers in porous environment    [PDF]

V. Blavatska, C. von Ferber
We study the conformational properties of charged polymers in a solvent in the presence of structural obstacles correlated according to a power law \sim x^{-a}. We work within the continuous representation of a model of linear chain considered as a random sequence of charges $q_i=\pm q_0$. Such a model captures the properties of polyampholytes -- heteropolymers, comprising both positively and negatively charged monomers. We apply the direct polymer renormalization scheme and analyze the scaling behavior of charged polymers up to the first order of an $\epsilon=6-d$, $\delta=4-a$-expansion.
View original: http://arxiv.org/abs/1307.2878