^1HNMR及Raman光谱法研究十二烷基甜菜碱缔合体系的微观结构

Studies on Microstructure of Dodecylbetaine System with \{\{\}\+1H\} NMR and Raman Method

采用１ＨＮＭＲ法研究了十二烷基甜菜碱、苯甲醇、水形成胶束的微观结构，推测苯甲醇在胶束中的增溶位置，发现在由Ｏ／Ｗ向Ｗ／Ｏ型的转变过程中存在过渡结构，其分子排列有序，光学上呈各向同性，称之为拟液晶结构．通过分析１ＨＮＭＲ谱图得到该体系中Ｗ／Ｏ。

H\} NMR spectroscopy was used to study the microstructure of dodecylbetaine/phenylcarbinol/water system and determine the position of phenylcarbinol molecule in the micell. It was found that there was another kind of transitional structure beside W/O and \{O/W\} type in the system. According to the results of \{\{\}\+1H\} NMR and Raman study it should be a long\|range ordered structure called pseudo liquid crystal. Analyzing the \{\{\}\+1H\} NMR spectra of the system the range of the three types of micell was given: W/O, pseudo liquid crystal, \{O/W.\} In pseudo liquid crystal system, the molecules were highly orderized.