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Updated: Feb 24, 2026

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Photonic Shape Memory Polymer with Stable Multiple Colors.

Monali Moirangthem1, Tom A P Engels1, Jeffrey Murphy1

  • 1Functional Organic Materials & Devices and ‡Polymer Technology, Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

ACS Applied Materials & Interfaces
|August 26, 2017
PubMed
Summary
This summary is machine-generated.

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Researchers developed a novel photonic shape memory polymer film with a large, tunable color response. This material exhibits stable, multiple structural colors from blue to orange across a wide temperature range.

Area of Science:

  • Materials Science
  • Polymer Science
  • Optics

Background:

  • Shape memory polymers (SMPs) offer tunable properties for advanced applications.
  • Photonic materials exhibit color changes based on structural modifications.
  • Integrating shape memory effects with photonic properties remains a challenge.

Purpose of the Study:

  • To fabricate a photonic shape memory polymer film with a significant color response.
  • To investigate the mechanism behind the large color change and its temperature dependence.
  • To explore the potential of this material for applications requiring dynamic color displays.

Main Methods:

  • Fabrication of a semi-interpenetrating network using a cholesteric polymer and poly(benzyl acrylate).
  • Mechanical embossing of the photonic film above its glass transition temperature.
Keywords:
cholesteric liquid crystalsmechanical embossingsemi-interpenetrating polymer networkshape memory polymersstable colors

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  • Analysis of structural color changes during thermal recovery using a Kelvin-Voigt model.

    • Main Results:

    • A photonic shape memory polymer film with a large color response of approximately 155 nm was successfully fabricated.
    • The embossed film displayed multiple structural colors, ranging from blue to orange, upon heating through its broad thermal transition.
    • The relaxation behavior was accurately modeled by the Kelvin-Voigt model, indicating temperature has a stronger influence on color generation than time.

    Conclusions:

    • The developed photonic shape memory polymer film demonstrates a large and stable color response over a wide temperature range.
    • Mechanical embossing above the glass transition temperature is an effective method to induce significant structural changes and color shifts.
    • The material shows promise for applications in smart windows, sensors, and dynamic color displays due to its predictable and tunable optical properties.