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【答案】应助回帖
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爱与雨下: 金币+1 2017-01-02 07:42:09
xfgzju(fjtony163代发): 金币+25, 代发 2017-02-02 06:03:08
fjtony163: 翻译EPI+1, 代发 2017-02-02 06:03:18
CTAB molecules consists of two parts: hydrophilic head group with a positively charged that has associated water molecules and a hydrophobic tail. [这句话是多余的] When the concentration about its critical micelle concentration(CMC), CTAB molecules self-assemble with the hydrocarbon chains to form micelles. The surface of the micelle is positively charged. Adding a phosphate solution, which contains anionic ions, such as PO43-, HPO32-, to CATB micelles, results in the formation of a phosphate coated CAT micelles, due to strong electrostatic attractions. It is reported that the CTA + and PO43- with the same tetrahedron structure, which makes them compatible with each other on the stereochemical interactions[这句描述对吗？这么强的电荷作用，stereochemisty还管用吗？]. The PO43- coated CTAB micelle acts as a nucleation center, when Ca2+is added, it binds immediately to PO43- ions on micelle surface. [Therefore, the change of the surface area and pore volume, show that CTAB concentration for good dispersion and the importance of uniform size.] 这句话没写完 |
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