Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.1808419
Title: Surfactant free fabrication of polymeric nanoparticles by combined liquid-liquid phase separation and solvent/nonsolvent mixing technology
Authors: Xiong, J.Y. 
Liu, X.Y. 
Sawant, P.D. 
Chen, S.B. 
Chung, T.S. 
Pramoda, K.P.
Issue Date: 22-Dec-2004
Citation: Xiong, J.Y., Liu, X.Y., Sawant, P.D., Chen, S.B., Chung, T.S., Pramoda, K.P. (2004-12-22). Surfactant free fabrication of polymeric nanoparticles by combined liquid-liquid phase separation and solvent/nonsolvent mixing technology. Journal of Chemical Physics 121 (24) : 12626-12631. ScholarBank@NUS Repository. https://doi.org/10.1063/1.1808419
Abstract: It is generally agreed that, in most cases, surfactants are required to obtain stable polymeric nanoparticle dispersions. Here, we report a method which can be used to produce surfactant free yet stable polymeric nanoparticle dispersions. This method is based on explored mechanism of selective solvation of nanoparticles and EPD (electron pair donor)/EPA (electron pair acceptor) complexes formed among solvent and nonsolvent molecules. Using polyimide P84 (copolyimide 3,3′ 4,4′-benzophenone tetracarboxylic dianhydride and 80%methylphenylenediamine+20%methylenedianiline) as the model polymer, this mechanism was realized through a combined liquid-liquid phase separation and solvent/nonsolvent mixing technology. Surfactant-free polyimide nanoparticles (
Source Title: Journal of Chemical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/90244
ISSN: 00219606
DOI: 10.1063/1.1808419
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