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  • the correlation of microstructure morphology with gelation mechanism for sodium soaps in organic solvents

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1184
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      using sodium caprylate as a model molecule, in the present work, we unraveled the gelation mechanism of sodium soaps in organic solvents from its correlation with the microstructure morphology. it is interesting to find that both the formation of organogels and radiation-like gel fibers are controlled by na+ concentration in the system. as the gel-activator, the sodium ions not only accelerate the gelation process and enhance the gel networks, but also induce the morphology transformation from fibers to radiative nanoribbons. tem and xrd characterization reveals that the na+ enhanced effect should be ascribed to the structure transformation of sodium caprylate from layers to hexagonal packing, due to its reduced inter-separation after the addition of na+. based on these results, the gelation mechanism of sodium soaps has been also proposed.

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