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|Title:||Surfactant free fabrication of polyimide nanoparticles|
|Authors:||Xiong, J.Y. |
|Citation:||Xiong, J.Y., Liu, X.Y., Chen, S.B., Chung, T.S. (2004-12-06). Surfactant free fabrication of polyimide nanoparticles. Applied Physics Letters 85 (23) : 5733-5735. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1828598|
|Abstract:||Polyimide nanoparticles are fabricated using a combined liquid-liquid phase separation and solvent/ nonsolvent mixing technology. This technology allows us to produce stable polyimide nanoparticles with tunable size without any surfactants. Selective solvation and electron pair donor/electron pair acceptor interaction are employed to stabilize nanoparticles. The formation of polyimide nanoparticles is governed by a nucleation-dominated process and therefore the particle size is controlled by the nucleation rate. A very high level of supersaturation can be attained under the intensive local motions induced by ultrasound, resulting in a very high nucleation rate. This effect is found extremely useful in the fabrication of sub-50-nm polyimide nanoparticles. © 2004 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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