EFFECTS OF INORGANIC SALTS AND UREA ON MICELLAR STRUCTURE OF NONIONIC SURFACTANT
EFFECTS OF INORGANIC SALTS AND UREA ON MICELLAR STRUCTURE OF NONIONIC SURFACTANT
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DOI：
10.1016/0021-9797(75)90224-6
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发表时间：
1975-01-01
影响因子：
9.9
通讯作者：
MEGURO, K
中科院分区：
文献类型：
--
作者：
DEGUCHI, K;MEGURO, K
通过胶束与7，7，8，8-四氰基醌二甲烷（TCNQ）之间的电荷转移（CT）相互作用，研究了无机盐和尿素对非离子表面活性剂均相十二烷基七乙二醇醚（C12 E7）在胶束中的堆积方式的影响。在添加剂的存在下，CT相互作用的强度的变化归因于压实或松散的胶束。加入LiCl、NaCl、KCl、KBr和K2 SO 4后，C12 E7胶束的致密度增加，而加入KNO 3、KSCN和尿素后，C12 E7胶束的致密度降低。此外，添加剂对C12 E7的浊点的影响被发现相当好地对应于它们对CT相互作用的影响。结果表明，影响浊点的因素与胶束中C12 E7单体的堆积变化有关。
The effects of inorganic salts and urea on the mode of packing of nonionic surfactant, homogeneous hepta-ethylene glycol dodecyl ether (C12E7), monomers in the micelle were investigated by the charge-transfer (CT) interaction between C12E7micelle and 7,7,8,8-tetracyanoquinodimethane (TCNQ) in the solubilized system. The changes in the intensity of the CT interaction in the presence of additives were attributed to compacted or loosened micelles. The compactness of C12E7micelles increased with the addition of LiCl, NaCl, KCl, KBr, and K2SO4, and decreased with the addition of KNO3, KSCN, and urea. Furthermore, the effects of additives on the cloud point of C12E7were found to correspond fairly well to their effects on the CT interaction. The results suggest that the factors affecting the cloud point are related to the changes in the packing of C12E7monomers in the micelle.