The nature of the coacervate formed in the aqueous dodecyltrimethylammonium bromide-sodium 10-undecenoate mixtures
The nature of the coacervate formed in the aqueous dodecyltrimethylammonium bromide-sodium 10-undecenoate mixtures
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DOI：
10.1016/j.colsurfa.2005.11.014
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发表时间：
2006-04-05
影响因子：
5.2
通讯作者：
Sarmiento, F
中科院分区：
文献类型：
--
作者：
Sierra, MB;Messina, PV;Sarmiento, F
用光散射、电位测量和电子显微镜研究了十二烷基三甲基溴化铵（DTAB）-十一碳烯酸钠（SUD）水溶液中凝聚层的形成。当电位为零时，胶团出现凝聚，阻碍凝聚的能垒消失，促进了胶束的凝聚。棒状胶束在相图的富含DTAB的一侧聚集成束，而球形或球状胶束在富含SUD的一侧聚集成簇。这种差异解释了在两相区的相对侧中的过渡胶束-凝聚层的差异。(c)2005 Elsevier B. V.保留所有权利。
The formation of a coacervate in Mixtures of dodecyltrimethylammonium bromide (DTAB)-sodium 10-undecenoate (SUD) aqueous mixtures was studied by light scattering, potential measurements, and electronic microscopy. The coacervate appears when the potential goes to zero, and the energy barrier against agglomeration disappears, promoting the agglomeration of micelles. Rod-like micelles agglomerate in bundles in the DTAB-rich side of the phase diagram, while spherical or globular micelles agglomerate in clusters in the SUD-rich side. This difference explains the differences in the transition micelles-coacervate in the opposite sides of the two-phase region. (c) 2005 Elsevier B.V. All rights reserved.