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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Color-Tunable Binary Copolymers Manipulated by Intramolecular Aggregation and Hydrogen Bonding
Zhi-Yuan Xue1, Jia-Lin Yu1, Qing-Qing Xia1
1College of Chemistry and Chemical Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, People's Republic of China.
ACS Applied Materials & Interfaces
|November 16, 2022
Summary
Researchers developed novel luminescent polymer films with tunable colors and enhanced emission. These materials exhibit room-temperature phosphorescence (RTP) and UV responsiveness for advanced applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Photophysics
Background:
- Developing color-tunable luminescent polymers with high emission intensity and room-temperature phosphorescence (RTP) is crucial.
- Single chromophore components are desired for controlled photoluminescent properties.
Purpose of the Study:
- To synthesize binary copolymers with tunable luminescence and enhanced RTP.
- To investigate the effects of polymer matrix and N-substituted naphthalimides (NPA) on photophysical properties.
- To create UV-responsive luminescent polymer films for practical applications.
Main Methods:
- Free radical polymerization was used to synthesize binary copolymers with NPA chromophores.
- Different polymer matrices and vinyl-based acrylamide monomers were employed.
- Drop-casting method was utilized for large-scale film preparation.
Main Results:
- Remarkable fluorescence enhancement was observed due to intramolecular aggregation of NPA.
- Clear RTP signals were detected in air without special processing, attributed to hydrogen bonding networks.
- Synergistic effects of aggregation and rigidification improved optical performance.
Conclusions:
- The synthesized copolymers offer tunable emission, enhanced intensity, and RTP.
- UV-responsive, processable, and flexible luminescent polymer films were successfully prepared.
- These materials show potential for organic optoelectronics, information security, and bioimaging/sensing.
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