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Effects of Aspartic Acid and Lysine on Thermodynamic Functions of SDS Micellization

机译:天冬氨酸和赖氨酸对SDS胶束热力学功能的影响

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摘要

Aspartic acid and lysine can promote SDS micellization. The critical micellar concentration of SDS decreases with amino acid concentration, but first does and then increases with temperature. In SDS micellization, the change of standard Gibbs free energy is negative in SDS/H2O system with or without amino acid. With the increase of amino acid concentration, the changes of mole standard Gibbs free energy and enthalpy decrease, but the change of the system's entropy increases. The effect of lysine is more than that of aspartic acid on the thermodynamic functions.
机译:天冬氨酸和赖氨酸可以促进SDS胶束化。 SDS的临界胶束浓度随氨基酸浓度而降低,但先升高后随温度升高。在SDS胶束化过程中,含或不含氨基酸的SDS / H 2 O系统中标准Gibbs自由能的变化均为负。随着氨基酸浓度的增加,摩尔标准吉布斯自由能和焓的变化减少,但系统的熵变增加。在热力学功能上,赖氨酸的作用比天冬氨酸的作用大。

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