Вплив соляної кислоти і пероксиду водню на будову гідратного покриву кремнезему, адсорбційно модифікованого гіалуроновою кислотою
Hydration of composites with nanosilica A-300 and hyaluronic acid has been studied using low-temperature 1H NMR and FTIR spectroscopiesю. It has been established that co-adsorption of aqueous solutions of HCl and H2O2 onto a nanocomposite surface leads to their partial separation into components. In...
Saved in:
| Date: | 2012 |
|---|---|
| Author Affiliations: |
|
| Keywords: | keywords |
| Main Authors: | , , , , , |
| Format: | Article |
| Language: | Russian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2012
|
| Online Access: | https://surfacezbir.com.ua/index.php/surface/article/view/475 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Surface |
| Download file: | |
Institution
Surface| Summary: | Hydration of composites with nanosilica A-300 and hyaluronic acid has been studied using low-temperature 1H NMR and FTIR spectroscopiesю. It has been established that co-adsorption of aqueous solutions of HCl and H2O2 onto a nanocomposite surface leads to their partial separation into components. In the case of the adsorption of the HCl solution, four signals are observed in the 1H NMR spectra which can be attributed to the highly and smaller concentrated HCl–H2O solutions and water which does not practically dissolve HCl. In the case of the adsorption of H2O2-H2O onto nanosilica or A-300/HA, the hydrogen peroxide forms clusters which slowly exchange with water, and also 2–3 types of H2O2–H2O clusters with different concentrations of the hydrogen peroxide. The adsorption of H2O2–H2O onto the surface of the compacted composite is not accompanied by splitting of signals of strongly associated water. This can be caused by changes in the textural characteristics of the composite in comparison with non-compacted one. |
|---|