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Title: Phase behavior of polyampholytes from charged hard-sphere chain model
Authors: Jiang, J. 
Feng, J.
Liu, H.
Hu, Y.
Issue Date: 14-Apr-2006
Citation: Jiang, J., Feng, J., Liu, H., Hu, Y. (2006-04-14). Phase behavior of polyampholytes from charged hard-sphere chain model. Journal of Chemical Physics 124 (14) : -. ScholarBank@NUS Repository.
Abstract: A molecular thermodynamic theory is developed for polyampholytes from the coarse-grained charged hard-sphere chain model. The phase behavior of polyampholytes with variations in sequence and chain length is satisfactorily predicted by the theory, consistent with simulation results and experimental observations. At a fixed chain length, the phase envelope expands as the sequence of charge distribution becomes less random. With increasing chain length, the phase envelope expands for diblock and random polyampholytes, but shrinks for zwitterionic polyampholytes. The predicted critical temperature, density, and pressure exhibit scaling relations with chain length for all the three (diblock, random, and zwitterionic) polyampholytes. © 2006 American Institute of Physics.
Source Title: Journal of Chemical Physics
ISSN: 00219606
Appears in Collections:Staff Publications

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