Therefore, to evaluate the thermodynamic properties of polymer-surfactant self-assembled system, the critical micelle concentration (CMC) of CTAB and CTAB/PEO mixture was determined at...

1996年2月7日 · One- and two-dimensional 1H NMR studies of mixed counterion CTAB/CTA3,5 and CTAB/CTA2,6 surfactant systems indicate that, in their respective micelles, the dichlorobenzoate counterions intercalate among the surfactants' trimethylammonium headgroups.

The results demonstrate that NMR combined with optical spectroscopy offer powerful tools to assess parameters like drug binding, localization sites, and dynamic properties that play key roles in...

2016年3月7日 · 运用核磁共振（nmr）方法分别测定了表面活性剂辛基苯聚氧乙烯醚（tx-100）和十六烷基三甲溴化铵（ctab）在不同温度下的临界胶束浓度．阐述了应用1d nmr线型分析方法对表面活性剂快交换体系平均停留时间的定量测量．实验测量了tx-100和ctab胶束溶液中表面活性 ...

Through characterizing the reaction system by Raman spectroscopy and NMR technique, it can be revealed that, employing CTAB to form reverse micelles to construct sealed chemical environment is...

1978年6月1日 · The proton NMR studies can be seen to provide us with rather detailed information on the behavior of the alkyl chain of CTAB, but ~zC NMR (24, 35, 36) characterized by a much better resolution can be expected to be advantageous in this Journal of Colloid and Interface Science, Vol. 65, No. 1, June 1, 1978 94 ULMIUS ET AL.

2010年3月30日 · The interaction between CTAB and the Mn 3 O 4 nanoparticles was investigated by FTIR and 1 H NMR spectroscopies. Two different magnetic phase transitions were observed for both samples below the Curie temperature (43 °C) by using a low temperature Electron Paramagnetic Resonance (EPR) technique.

2018年8月22日 · Variable temperature, solid-state deuterium (2 H) NMR spectroscopy has been used to probe the rather complex head group dynamics of the surfactant cetyltrimethylammonium bromide-d 9 (CTAB-d 9) in bulk. Heating and cooling runs were made as …

2021年4月1日 · The present study provides the use of NMR in quantification of residual DOC and CTAB in Hib purified PRP. These residual impurities can be quantified from the spectrum by comparing the intensities of the signals of anomeric proton or with the average of all proton signals of PRP with the specified markers peaks of CTAB and DOC.

2014年12月5日 · Micellization of the cationic surfactant cetyltrimethylammonium bromide (CTAB) in dilute aqueous solutions of sodium butyrate (Na-Bu), sodium benzoate (Na-Ben) and sodium salicylate (Na-Sal) at different concentrations, viz. 0.005, …