Excess Charge in Polyampholytes

Yacov Kantor; Mehran Kardar

doi:10.1209/0295-5075/27/9/002

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Excess Charge in Polyampholytes

Yacov Kantor·Mehran Kardar

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Abstract

Polyampholytes (PAs) are polymers composed of (quenched) random sequences of positive and negatively charged monomeric groups. We show that the radius of gyration, $R_g$, of a PA strongly depends on its overall excess charge $Q$, and is very weakly influenced by other aspects of the sequence. For $Q Q_c$ it is stretched. Some aspects of this behavior can be understood by analogy with the shape instability of a charged drop where the Rayleigh charge plays the role of $Q_c$.

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BibTeX RIS

Yacov Kantor, Mehran Kardar. 1994-04-15. Excess Charge in Polyampholytes. https://doi.org/10.1209/0295-5075%2F27%2F9%2F002

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