A method for producing polymer-encapsulated nanoparticles
The present invention relates to a method for producingpolymer-encapsulated nanoparticles comprising the steps of: pumping supercritical fluid into a pressurised vessel, at a predetermined pressure; spraying a solution comprising a compound to be encapsulated, a polymer and an organic solvent into t...
| Main Authors: | , |
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| Format: | Patent |
| Published: |
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/33157/ |
| Summary: | The present invention relates to a method for producingpolymer-encapsulated nanoparticles comprising the steps of: pumping supercritical fluid into a pressurised vessel, at a predetermined pressure; spraying a solution comprising a compound to be encapsulated, a polymer and an organic solvent into the vessel; collecting precipitated particles on a filter; and washing the particles with the supercritical fluid to remove residual solvent; characterised in that: the difference between the melting point of the polymer and the melting point of the compound to be encapsulated is not more than 10C. |
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