Nonspherical chiral helical polymer particles with programmable morphology prepared by electrospraying

Area of Science:

• Materials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Chiral materials are increasingly important in science and technology.
• Nonspherical polymer particles (NPPs) offer unique properties distinct from spherical counterparts.
• Combining chirality with NPPs presents an opportunity for novel advanced materials.

Purpose of the Study:

• To report the first protocol for preparing electrosprayed nonspherical chiral particles.
• To utilize helical substituted polyacetylenes as a model system.
• To demonstrate controllable morphology and optical activity in the synthesized particles.

Main Methods:

• Electrospray technique for particle fabrication.
• Synthesis of helical substituted polyacetylenes.
• Scanning Electron Microscopy (SEM) for morphology analysis.
• Circular Dichroism (CD) spectroscopy for optical activity measurement.

Main Results:

• Successful fabrication of nonspherical chiral polymer particles with tunable morphologies (bowl-, golf-, apple-like).
• Demonstrated remarkable optical activity in the particles, linked to one-handed helical polymer chains.
• Confirmation of the successful combination of chirality and nonspherical morphology.

Conclusions:

• Established a novel and versatile platform for creating nonspherical chiral polymer particles.
• The developed method allows for controllable particle morphology.
• These particles hold significant potential for advanced material applications.