Formation of colloidal components starting from a liquid-liquid phase separation

Microencapsulation by coacervation consists of the formation of oil-containing droplets..
This process occurs when a homogeneous solution containing charged molecules undergoes a liquid-liquid phase separation, which results in most cases from the association of molecules of opposite charge; the shell of the droplets forms thanks to a cross-linker.

The advantages:

  • cost effectiveness of the technique, materials, and polymers used
  • increase in the solidity and strength of the capsules


  • microcapsules with dimensions between 1-100 um, payload up to 70-80%.

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