Photonic Plasticines with Uniform Structural Colors, High Processability, and Self-Healing Properties

Area of Science:

• Soft matter photonics
• Dynamic chemistry
• Colloidal self-assembly

Background:

• Balancing optical properties and processability in colloidal superstructures is a significant challenge.
• Existing photonic materials often lack the desired flexibility and durability for advanced applications.

Purpose of the Study:

• To develop a novel photonic material with tunable structural colors, enhanced processability, and self-healing properties.
• To overcome the limitations of traditional soft matter photonic materials.

Main Methods:

• Preparation of a boronate ester bond-based macromonomer using polyvinyl alcohol and 3-(acrylamido) phenylboronic acid with silica colloids.
• In situ photopolymerization to form dynamic photonic plasticine with crosslinked boronate ester networks.
• Characterization of amorphous photonic crystals and angle-independent structural colors.

Main Results:

• Demonstrated a photonic plasticine with uniform structural colors, high processability, and self-healing capabilities.
• The material exhibits angle-independent structural colors due to randomly packed colloidal amorphous photonic crystals.
• The reversible boronate ester bonds enable self-adaptable and self-healing properties.

Conclusions:

• The developed photonic plasticine offers a unique combination of optical performance and material processability.
• This material can be easily shaped into 3D objects using standard methods, opening possibilities for various applications.
• Potential applications include bio-encoding, optical filters, and anti-counterfeiting technologies.