A method for the preparation of hollow polymeric micrometric or nanometric particles comprising, in sequence, a solubilization step, where a gas or a vapor is solubilized as the blowing agent in thermoplastic polymer bulk particles and a foaming step in order to produce one or more bubbles in said particles. The method comprises an embedding step, at least before the foaming step, where said bulk particles are embedded in a single and continuous barrier film made of a water-soluble polymer and, after the foaming step, a solubilization step where said barrier film polymer is washed out.

Method for the Preparation of Micrometric or Nanometric Hollow Particles

DI MAIO, ERNESTO;NETTI, PAOLO ANTONIO
2014

Abstract

A method for the preparation of hollow polymeric micrometric or nanometric particles comprising, in sequence, a solubilization step, where a gas or a vapor is solubilized as the blowing agent in thermoplastic polymer bulk particles and a foaming step in order to produce one or more bubbles in said particles. The method comprises an embedding step, at least before the foaming step, where said bulk particles are embedded in a single and continuous barrier film made of a water-soluble polymer and, after the foaming step, a solubilization step where said barrier film polymer is washed out.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/630563
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