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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Tailoring complex polymeric microstructures is crucial for microfluidics and nanotechnology.
  • Current fabrication techniques for controlled microcapsule morphology are limited.
  • Controlled morphology is essential for functional performance and diverse applications.

Purpose of the Study:

  • To develop a simple, inexpensive, versatile, and high-throughput method for fabricating microcapsules with controlled morphology.
  • To report a novel approach for tailoring complex polymeric microstructures.
  • To enable discoveries in polymer colloids.

Main Methods:

  • Utilized Pickering emulsion-templated in situ polymerization.
  • Employed hydrophobized titanium dioxide nanoparticles (TiO2 NPs) with tunable wettability.
  • Used hexadecane (HD) as a soft template for the core.

Main Results:

  • Successfully fabricated microcapsules with diameters ranging from 5 to 20 μm.
  • Achieved diverse microstructures including smooth, raspberry-like, hollow, and filled morphologies.
  • Demonstrated control over particle properties like morphology, size, shell thickness, and core content by manipulating reaction parameters.

Conclusions:

  • Proposed novel mechanisms for the formation of various microstructures based on experimental results.
  • The developed method offers a versatile platform for creating complex polymeric microstructures.
  • This advancement addresses the bottleneck in fabricating microcapsules with controlled morphology.