Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12358/26139
Title | Encapsulation of phenolphthalein pH-indicator into a sol-gel matrix |
---|---|
Untitled | |
Abstract |
Transparent monolithic silica doping with phenolphthalein has been prepared via the acid-catalyzed sol-gel reactions of tetraethylorthosilicate in the presence of phenolphthalein. The immobilized phenolphthalein pH-indicator shows similar behavior as its solution counterpart. The UV/Vis spectra indicate that the phenolphthalein retains its structure during the sol-gel reactions in terms of response to pH. The phenolphthalein can be regarded as uniformly distributed in the silica matrix. This observation has been confirmed using polarized microscopy. |
Type | Journal Article |
Date | 2001 |
Published in | Journal of dispersion science and technology |
Series | Volume: 22, Number: 6 |
Publisher | Taylor & Francis Group |
Citation | |
Item link | Item Link |
License | ![]() |
Collections | |
Files in this item | ||
---|---|---|
phph.pdf | 363.0Kb |