Randomly charged polymers in porous environment

Authors :: Blavatska, V.
von Ferber, C.
Source :: Condens. Matter Phys., 2013, vol. 16, No. 3, 34601
Publication Year :: 2013
Abstract: 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.<br />Comment: 6 pages