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Coatable 2D Conjugated Polymers Containing Bulky Macromolecular Guests for Thermal Imaging
Aya Edagawa1, Satoru Matsuda2, Hirofumi Kawakubo2
1Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
ACS Applied Materials & Interfaces
|September 3, 2022
Summary
Researchers tuned the dynamic properties of 2D polymers by incorporating polymer guests into layered polydiacetylene (PDA). This created a flexible, color-changing coating for advanced thermal imaging applications.
Area of Science:
- Materials Science
- Polymer Chemistry
Background:
- Dynamic properties of 2D polymers are linked to structural flexibility.
- Softening layered materials can tune and enhance dynamic properties.
Purpose of the Study:
- To tune the flexibility of layered polydiacetylene (PDA) using interlayer polymeric guests.
- To explore the thermoresponsive color-change properties of modified PDA.
- To apply the modified PDA for temperature-distribution imaging.
Main Methods:
- Intercalation of polymer guests with varying branching structures into layered PDA.
- Characterization of thermoresponsive color transitions (blue-to-red).
- Development of PDA-polymer composite coatings for thermal imaging.
Main Results:
- Intercalation of bulky polymer guests lowered the transition temperature and broadened the color-change range of PDA.
- Homogeneous PDA-polymer composite coatings were achieved on centimeter scales.
- The coating was successfully used for colorimetric estimation of liquid specific heat and visualizing temperature distribution in simulated surgical tissue.
Conclusions:
- Softening layered 2D materials by incorporating polymer guests is an effective strategy to tune dynamic and thermoresponsive properties.
- The developed PDA-based coatings offer versatile applications in thermal imaging across various fields.
- This work advances the understanding and application of soft 2D materials.
