The adsorption of benzenoid aromatic compounds on porous silica has been studied by 13 C and 19 F NMR and by BET measurements. Small chemical shifts between the resonances of methyl groups or fluorine substituents in the microcrystalline bulk material and the adsorbed species can be used to monitor
XPS study of surface-active organic compounds on fine ferrous powder
β Scribed by Elisabeth Johansson; Lars Nyborg
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 52 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0142-2421
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The relationship between the type of activator and the morphology of polycaproamide (PCA) powders was investigated. The powders were prepared by anionic polymerization of caprolactam in ethylbenzene using sodium caprolactamate as initiator and CO 2 , diisopropylcarbodiimide, and dicyclohexylcarbodii