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http://nopr.niscpr.res.in/handle/123456789/18050| Title: | Study on lyotropic liquid crystals of the 3-octyloxy-2-hydroxypropyl trimethyl ammonium bromide-n-hexanolwater system |
| Authors: | Yin, Bao-Lin Wei, Xi-Lian Sang, Qing Sun, De-Zhi |
| Issue Date: | Jan-2005 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Phase diagram of ternary system for 3-octyloxy-2- hydroxypropyl trimethyl ammonium bromide (R8TAB)-n-hexanol- water has been investigated using turbidity titration method at 25 °C. Typical lyotropic liquid crystals (LLCs) of lamellar, hexagonal and cubic phases have been found in the system. The structure and the structure conversion have been determined using polarizing-light microscope, 2H nuclear magnetic resonance (2H NMR) and differential scanning calorimetry (DSC). Experimental results show that with the enhancement of relative amount of water in a mixture maintaining mass ratio of R8TAB to C6H13OH at 3:2, the phase transition is as follows: from mixed lamellar and hexagonal liquid crystals to mixed lamellar, hexagonal and cubic ones, then to single cubic one and finally to mixed hexagonal one and isotropic liquid phase. |
| Page(s): | 67-70 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.44A(01) [January 2005] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 44A(1) 67-70.pdf | 709.51 kB | Adobe PDF | View/Open |
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