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Abstract：
With increasing the number of oxyethylene groups in the spacer of [C 12H25N+(CH3)2] 2C2H4(OC2H4) n· 2Br-(C12-2-En-C 12·2Br, n=2, 3), the homogeneous regions in the phase diagrams of aqueous mixture of C12-2-En-C12·2Br with C12H25SO4Na(SDS) expand obviously in comparison with that of [C12H25N+(CH 3)2CH2]2· 2Br-/SDS mixed system. There exists a synergism between C12-2-E n-C12·2Br and SDS during the mixed micellization. The minimum critical micelle concentration (cmcT,min) in the homogeneous region is 0.0339 mmol·L-1 and the corresponding molar fraction (x2*) of SDS in the bulk solution is 0.447 estimated by Rosen theory. At x2 = 0.5, the corresponding molar fraction (x2M) in the mixed micelle and the total aggregation number (NT) are 0.43 and 36 respectively.
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Acta Physico - Chimica Sinica
ISSN： 1000-6818
CN： 11-1892/O6
Year： 2005
Issue： 1
Volume： 21
Page： 6-9
0 . 4 2 7
JCR@2005
1 0 . 8 0 0
JCR@2023
ESI Discipline： CHEMISTRY;
JCR Journal Grade：4
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 0
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