Адсорбційні властивості функціоналізованих місткових полісілсесквіоксанових ксерогелів
Adsorption properties of polysilsesquioxane's sorbents with ethylene and phenelene bridges supporting aminopropyl and mercaptopropyl groups in the surface have been studied relative nitrogen, n-hexane, n-heptane, cyclohexane, acetonitrile, and triethylamine molecules. It has been shown the belo...
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| Date: | 2009 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2009
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| Online Access: | https://surfacezbir.com.ua/index.php/surface/article/view/362 |
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| Journal Title: | Surface |
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Surface| Summary: | Adsorption properties of polysilsesquioxane's sorbents with ethylene and phenelene bridges supporting aminopropyl and mercaptopropyl groups in the surface have been studied relative nitrogen, n-hexane, n-heptane, cyclohexane, acetonitrile, and triethylamine molecules. It has been shown the belonging adsorption isotherms of vapoures under study to the same type for each sorbent in dependence of chemical nature of the bridge (own rigidity) as well introduced junctional groups. The functioncdized agents influence on structure formation determined by their acidic-basic properties. The basic nature of junctional group (aminopropyl) is favorable for developed pore structure formation contrary to acidic (mercaptopropyl) group which cause formation xerogels with more fine pores as have been observed for labile structure of the sample with ethylene bridge. While in the case of more rigidity ofphenelene bridge, the influence of acidic-basic properties offukctionalized agents on pore structure formation is less perceptible. |
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