Nuclear Physics and Atomic Energy

Ядерна фізика та енергетика
Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English
  Periodicity: 4 times per year

  Open access peer reviewed journal

 Home page   About 
Nucl. Phys. At. Energy 2010, volume 11, issue 1, pages 86-89.
Section: Engineering and Methods of Experiment.
Received: 10.02.2010; Published online: 30.03.2010.
PDF Full text (ua)
https://doi.org/10.15407/jnpae2010.01.086

Neutron research of the structure transition micelle to crystallites in liquid system D2O-tetradecyltrimethilammonium bromide-NaBr

L. A. Bulavin1, O. I. Ivankov1,2, V. M. Sysoev1

1Kyiv Taras Shevchenko National University, Kyiv, Ukraine
2Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics, Dubna, Russia

Abstract: Structure transition in triple liquid system D2O-tetradecyltrimethilammonium bromide-NaBr was studied by means of small-angle neutron scattering in a wide range of temperature, pressure and salt concentrations. The phase P-T transition diagrams of colloidal micellar system to the suspension colloidal system with crystallites was constructed from experimental data. It is shown that salt concentration increasing causes the shift of the boundary in the direction of higher temperatures and lower pressures. Thermodynamic justification of the received results is represented.

Keywords: tetradecyltrimethilammonium bromide (TTAB), small angle neutron scattering (SANS), structure transition, phase diagrams.

References:

1. Offen H. W., Turley W. D. Pressure-induced phase transition of MyTAB micelles in water. J. Col. Interface Sci. 87 (1982) 442. https://doi.org/10.1016/0021-9797(82)90341-1

2. Offen H. W., Turley W. D. Pressure dependence of the critical micellar temperature. J. Col. Interface Sci. 92 (1983) 575. https://doi.org/10.1016/0021-9797(83)90178-9

3. Islamov A., Haramagatti C. R., Gibhardt H. et al. Pressure-induced phase transitions in micellar solutions. Physica B: Condensed Matter 385-386 (2006) 791. https://doi.org/10.1016/j.physb.2006.06.085

4. Куклин А. И., Утробин П. К., Иваньков О. И. и др. Установка высокого гидростатического давления на малоугловом спектрометре ЮМО. Сообщение ОИЯИ (2008) P3-2008-19.

5. Ostanevich Y. M. Time-of-flight small-angle scattering spectrometers on pulsed neutron sources. Macromol. Chem., Macromol. Symp. 15 (1988) 91. https://doi.org/10.1002/masy.19880150107

6. Куклин А. И., Исламов А. Х., Ковалев Ю. С. и др. Оптимизация двухдетекторной системы малоуглового нейтронного спектрометра ЮМО для исследования нанообъектов. Поверхность 6 (2006) 73.

7. Kuklin A. I., Islamov A. Kh. Gordeliy V. I. Scientific Reviews: Two-Detector System for Small-Angle Neutron Scattering Instrument. Neutron News 16 (2005) 16. https://doi.org/10.1080/10448630500454361