Three methods were employed to introduce sulfur groups (thiol and thio ester groups) onto the surface of a carbon black. Positive results were obtained and controled by functional group analysis and radiochemistry.
Optimization of the methods for introduction of amine groups onto the silica nanoparticle surface
β Scribed by Song Liu; Hai-Li Zhang; Tian-Cai Liu; Bo Liu; Yuan-Cheng Cao; Zhen-Li Huang; Yuan-Di Zhao; Qing-Ming Luo
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 465 KB
- Volume
- 80A
- Category
- Article
- ISSN
- 1549-3296
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Solutions of (4j in organic solvents display an intensive blue fluorescence and in aqueous mineral acids a blue-green fluorescence. In the N M R spectrum (CDC13) a singlet occurs at T = 0.87, which is ascribed to the protons H-1 and H-3 (the neighboring protons to the ring nitrogen); the
The introduction of peroxide groups onto carbon black surface was achieved through the trapping of the peroxide radicals formed by the decomposition of polymeric peroxide, such as poly(tetraethy1ene glycol peroxyadipate) (ATPPO), and bis-peroxide, such as l,l'-bis(t-buty1dioxy)cyclohexane (Perhexa-C