The Influence of Surfactant Self-Association on 23Na Relaxation in Aqueous Solutions and Silica Aqueous Dispersions

被引：0
|
作者：
Popova, M. V. [1 ]
Chernyshev, Y. S. [1 ]
Michel, D. [2 ]
机构：
[1] St Petersburg State Univ, Inst Phys, Dept Quantum Magnet Phenomena, St Petersburg 198504, Russia
[2] Univ Leipzig, Fac Phys & Geosci, D-04103 Leipzig, Germany
来源：
APPLIED MAGNETIC RESONANCE | 2014年 / 45卷 / 04期
关键词：
NUCLEAR MAGNETIC RELAXATION; NMR RELAXATION; C-13; NMR; SYSTEMS;
D O I：
10.1007/s00723-014-0529-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Nuclear magnetic resonance Na-23 studies were carried out for sodium octanoate in aqueous solution and in silica aqueous dispersion. The concentration and temperature dependencies of spin-lattice and spin-spin relaxation times of sodium were investigated for ternary systems and binary solutions. The results indicate that the specific chemical association between counterion and ion rather than electrostatic interaction takes place in all systems. The existence of premicellar aggregates in octanoate solution was found.
引用
收藏
页码：365 / 374
页数：10
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