Transition from disc to rod-like shape of 16-3-16 dimeric micelles in aqueous solutions

被引:28
作者
Aswal, VK [1 ]
De, S
Goyal, PS
Bhattacharya, S
Heenan, RK
机构
[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
[2] Indian Inst Sci, Dept Organ Chem, Bangalore 560012, Karnataka, India
[3] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
来源
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1998年 / 94卷 / 19期
关键词
D O I
10.1039/a805307c
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Small-angle neutron scattering (SANS) measurements from bis-cationic C16H33N+(CH3)(2)-(CH2)(3)-N+ (CH3)(2)C16H33 2Br(-) dimeric surfactant, referred to as 16-3-16, at different concentrations and temperatures, are reported. It is seen that micelles are disc-like for concentrations C = 2.5 and 10 mM at temperature T = 30 degrees C. At low concentration C = 0.5 mM micelles are rod-like. Similarly, there is a disc to rod-like transition of micelles on increasing the temperature. For C = 2.5 mM, micelles are rod-like at T = 45 and 70 degrees C.
引用
收藏
页码:2965 / 2967
页数:3
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