𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Fourier Transform IR Study of the Phase Transitions and Molecular Order in the Hexadecyltrimethylammonium Sulfate/Water System

✍ Scribed by Tuck C. Wong; Ning Bew Wong; Peter A. Tanner

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
121 KB
Volume
186
Category
Article
ISSN
0021-9797

No coin nor oath required. For personal study only.

✦ Synopsis

Variable temperature Fourier transform infrared (FTIR) spectroscopy was used to study the transition between the micellar and the coagel phases, and between the cubic and the coagel phases, for the hexadecyltrimethylammonium sulfate (CTAS)/water system. The phase transition takes place at 15°C for the coagel to micelle transition and 17°C for the coagel to cubic phase transition. CTAS in the solid state at two temperatures was also studied by FTIR to provide comparison with the aqueous samples on the molecular motion and packing in these phases. The present FTIR data also suggest the formation of rod-like micelles upon the addition of electrolyte, NaCl, to the CTAS/water system.

📜 SIMILAR VOLUMES

Fourier transform infrared spectroscopy
Fourier transform infrared spectroscopy as a probe for the study of the hydration of lipid self-assemblies. II. Water binding versus phase transitions
✍ Carsten Selle; Walter Pohle 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 291 KB 👁 2 views

The gradual hydration of phospholipid films can be effectively probed by Fourier transform infrared (FTIR) spectroscopy (cf. part I of this series). The hydration-induced changes observed for lipid IR-absorption bands are probably composed of contributions arising from the effects of both the direct

A study on the Kabachnik–Fields reaction
A study on the Kabachnik–Fields reaction of benzaldehyde, propylamine, and diethyl phosphite by in situ Fourier transform IR spectroscopy
✍ György Keglevich; András Fehérvári; István Csontos 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 322 KB

## Abstract The phospha‐Mannich condensation of benzaldehyde, __n__‐propylamine, and diethyl phosphite carried out at 80°C in acetonitrile takes place via the imine (PhCNPr) intermediate as suggested by in situ FT‐IR spectroscopy. © 2011 Wiley Periodicals, Inc. Heteroatom Chem 22:599–604, 2011; V

A Fourier Transform Infrared Study on th
A Fourier Transform Infrared Study on the Structure of Water Solubilized by Reverse Aggregates of Sodium and Magnesium Bis(2-ethylhexyl)sulfosuccinates in Organic Solvents
✍ Luzia P. Novaki; Omar A.El Seoud 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 240 KB

chemical and enzymatic reactions and preparation of poly-The structure of water (4% D 2 O in H 2 O, v/v) solubilized by mers and quasi-monodisperse inorganic particles (1-8). the reverse aggregates of sodium bis(2-ethylhexyl) sulfosuccinate It is important to understand fully the properties of water