Title: Randomly charged polymers in porous environment
Author(s):

	V. Blavatska (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St., 79011 Lviv, Ukraine) ,
	C. von Ferber (Applied Mathematics Research Centre, Coventry University, CV1 5FB Coventry, UK)

We study the conformational properties of charged polymers in a solvent in the presence of structural obstacles correlated according to a power law ~x^-a. We work within the continuous representation of a model of linear chain considered as a random sequence of charges q_i=± q₀. 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 ε=6-d, δ=4-a-expansion.

Key words: polymers, quenched disorder, scaling, renormalization group
PACS: 61.25.hp, 11.10.Hi, 64.60.ae, 89.75.Da

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