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Related Experiment Video

Updated: Apr 17, 2026

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils

Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils

Published on: January 25, 2018

Single- and multicompartment hollow polyelectrolyte complex microcapsules by one-step spraying.

Qifeng Wang¹, Joseph B Schlenoff

¹Department of Chemistry and Biochemistry, The Florida State University, Tallahassee, FL, 32306, USA.

Advanced Materials (Deerfield Beach, Fla.)

|February 14, 2015

Summary

Novel polyelectrolyte complex microcapsules are fabricated without templates or surfactants. This method allows precise control over microcapsule size and wall thickness for efficient encapsulation.

Keywords:

encapsulation microcapsules polyelectrolyte complexes salt spraying

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Last Updated: Apr 17, 2026

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Published on: August 28, 2015

Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Traditional methods for polyelectrolyte complex microcapsule fabrication often rely on templates and surfactants.
These conventional approaches can introduce complexities in the production process and potential contamination issues.

Purpose of the Study:

To develop a novel, template- and surfactant-free method for preparing polyelectrolyte complex microcapsules.
To demonstrate precise control over microcapsule dimensions (size and wall thickness).
To showcase the encapsulation capabilities for polymers and nanoparticles.

Main Methods:

Ultrasonic spraying of a polyelectrolyte complex solution into a hot water reservoir.
Utilizing the enhanced diffusion and relaxation of polymers in hot water for spontaneous microcapsule formation.
Incorporating target materials (polymers, nanoparticles) directly into the polyelectrolyte solution prior to spraying.

Main Results:

Successfully prepared polyelectrolyte complex microcapsules using a template- and surfactant-free approach.
Achieved precise control over microcapsule size and wall thickness.
Demonstrated effective encapsulation of both polymers and nanoparticles within the microcapsules.

Conclusions:

The developed method offers a simplified and efficient route to polyelectrolyte complex microcapsules.
This technique provides excellent control over microcapsule morphology.
The microcapsules are suitable for encapsulating various materials, highlighting their potential applications.