Published TCIMAIL newest issue No.197
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Single-Walled Carbon Nanotube Dispersant — Photochemically Controllable Dispersion and Aggregation
Product
Advantages
- Strong interaction to the surface of single-walled carbon nanotube (SWCNT)
- Positive charge on the stilbene core enables SWCNT to disperse in aqueous solution
- UV irradiation makes closure of the stilbene moiety and elimination from the SWCNT surface which enables SWCNT to aggregate
- Precisely controllable dispersion by photo irradiation
- After the aggregation, the dispersant can be easily removed by filtration, etc.
Possible Applications
- Purification of SWCNT by combining dispersion in solution, centrifugation and photo-induced aggregation
- Development of new composite material for CNT-based film and paint
References
- Y. Matsuzawa, M. Yoshida, H. Ohyama, H. Kato, 2011, Patent JP5552641.
- Photoinduced Dispersibility Tuning of Carbon Nanotubes by a Water‐Soluble Stilbene as a Dispersant
- Effective Nondestructive Purification of Single-Walled Carbon Nanotubes Based on High-Speed Centrifugation with a Photochemically Removable Dispersant
