KINETICS OF STEP-WISE MICELLE ASSOCIATION
KINETICS OF STEP-WISE MICELLE ASSOCIATION
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DOI：
10.1021/j100603a016
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发表时间：
1974-01-01
影响因子：
--
通讯作者：
WALL, SN
中科院分区：
文献类型：
--
作者：
ANIANSSON, EA;WALL, SN
近几年来，人们用各种方法对表面活性剂溶液中胶束的缔合和解离动力学进行了实验研究。1-17缔合度一般为100的量级，这就要求在处理动力学时，要么作出极大简化的假设，1· 12 ′ 18· 19，要么找到一种处理它的方法。下面的处理是朝着后一个方向的一步。首先，我们将把动力学方程化为一种形式，使人联想到热传导（扩散等）。并确定了合适的速率限制量。在非常小的偏离平衡的松弛过程的治疗将给出与现有的实验结果相比，结果。然后将处理扩展到等线性的较大偏差，并给出工艺仍表现出表观线性的合理解释。最后，通过用偏微分方程逼近动力学方程来处理丰富胶束之间的重排过程。这种处理仅限于一个有点理想化的情况下，但扩展到更现实的。
During the last few years the kinetics of micelle associa-tion and dissociation in surfactant solutions have been studied experimentally with various techniques. 1-17 The degree of association is typically ofthe order of 100, which requires either that drastically simplified assumptions be made in treating the kinetics, 1· 12'18· 19 or, that a perspi-cuous method be found for its handling. The following treatment is a move in the latter direction. First we shall put the kinetic equation into a form which suggests an analogy with heat conduction (diffu-sion, etc.) and identifies theproper rate-limiting quan-tities. A treatment of the relaxation process at very small deviations from equilibrium will be given and the result compared with existing experimental results. The treatment will then be extended to larger deviations from equi-librium and a plausible explanation given of the apparent linearity still exhibited by the process. Finally, the pro-cess of rearrangement among the abundant micelles will be treated by approximating the kinetic equations by a partial differential equation. This treatment is limited to a somewhat idealized case, but an extension to more real-istic ones is indicated.