New biased-reptation model for charged polymers
GW Slater, J Noolandi - Physical review letters, 1985 - APS
GW Slater, J Noolandi
Physical review letters, 1985•APSWe study entangled charged polymers in an electric field with a new biased-reptation model.
Two microscopic time scales are relevant: the usual tube disengagement time TD, and a
new chain stretching time constant τ str. When τ str< TD, ie, for long chains and/or high
electric fields, the chains are stretched in the field direction. As an example, we discuss DNA
gel electrophoresis in terms of these results. Experimental and theoretical investigations are
suggested.
Two microscopic time scales are relevant: the usual tube disengagement time TD, and a
new chain stretching time constant τ str. When τ str< TD, ie, for long chains and/or high
electric fields, the chains are stretched in the field direction. As an example, we discuss DNA
gel electrophoresis in terms of these results. Experimental and theoretical investigations are
suggested.
Abstract
We study entangled charged polymers in an electric field with a new biased-reptation model. Two microscopic time scales are relevant: the usual tube disengagement time T D, and a new chain stretching time constant τ str. When τ str< T D, ie, for long chains and/or high electric fields, the chains are stretched in the field direction. As an example, we discuss DNA gel electrophoresis in terms of these results. Experimental and theoretical investigations are suggested.
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