Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine)
Abstract Preparation of non‐conjugated luminescent polymers (NCLPs) with excellent cluster luminescence (CL) performance is of great significance for scientific and industrious applications, and yet improving the performance of NCLPs through proper structural design is still a huge challenge. Herein...
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Wiley
2023-04-01
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| Online Access: | https://doi.org/10.1002/agt2.276 |
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| author | Hongxu Du Wenjing Zhao Yijie Xia Siyu Xie Yi Tao Yi Qin Gao Jie Zhang Xinhua Wan |
| author_facet | Hongxu Du Wenjing Zhao Yijie Xia Siyu Xie Yi Tao Yi Qin Gao Jie Zhang Xinhua Wan |
| author_sort | Hongxu Du |
| collection | DOAJ |
| description | Abstract Preparation of non‐conjugated luminescent polymers (NCLPs) with excellent cluster luminescence (CL) performance is of great significance for scientific and industrious applications, and yet improving the performance of NCLPs through proper structural design is still a huge challenge. Herein, we report a non‐conjugated ionized polymeric system consisting of (−)‐camphorsulfonic acid ((−)‐CSA) and poly(2‐vinylpyridine) (P2VP). These acid‐base complexes exhibit typical excitation‐dependent fluorescence and room‐temperature phosphorescence (RTP) with a lifetime up to 364 ms. We discover that changing the stereoregularity from atactic to isotactic significantly improves the CL performance of the complex. It (1) broadens the fluorescence emission spectra to cover the entire visible region, (2) enhances the fluorescence emission intensity at long wavelength beyond 500 nm, (3) enhances the phosphorescence intensity, and (4) extends the phosphorescence lifetime. Systematical experimental characterization and molecular dynamics simulation unravel the key role of stereoregularity in determining the formation of different pyridine aggregates that strongly influence the CL performance. Moreover, the different luminescence shows great potential in excitation divided information display and time‐resolved encrypted display. This work not only points to a new direction for developing NCLPs with excellent performance, but also broadens the applications of NCLPs materials. |
| first_indexed | 2024-04-09T16:13:28Z |
| format | Article |
| id | doaj.art-7f23f5ea9efe4b76baea7fea2f9edef8 |
| institution | Directory Open Access Journal |
| issn | 2692-4560 |
| language | English |
| last_indexed | 2024-04-09T16:13:28Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Aggregate |
| spelling | doaj.art-7f23f5ea9efe4b76baea7fea2f9edef82023-04-24T08:03:50ZengWileyAggregate2692-45602023-04-0142n/an/a10.1002/agt2.276Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine)Hongxu Du0Wenjing Zhao1Yijie Xia2Siyu Xie3Yi Tao4Yi Qin Gao5Jie Zhang6Xinhua Wan7Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of Education College of Chemistry and Molecular Engineering Peking University Beijing ChinaAbstract Preparation of non‐conjugated luminescent polymers (NCLPs) with excellent cluster luminescence (CL) performance is of great significance for scientific and industrious applications, and yet improving the performance of NCLPs through proper structural design is still a huge challenge. Herein, we report a non‐conjugated ionized polymeric system consisting of (−)‐camphorsulfonic acid ((−)‐CSA) and poly(2‐vinylpyridine) (P2VP). These acid‐base complexes exhibit typical excitation‐dependent fluorescence and room‐temperature phosphorescence (RTP) with a lifetime up to 364 ms. We discover that changing the stereoregularity from atactic to isotactic significantly improves the CL performance of the complex. It (1) broadens the fluorescence emission spectra to cover the entire visible region, (2) enhances the fluorescence emission intensity at long wavelength beyond 500 nm, (3) enhances the phosphorescence intensity, and (4) extends the phosphorescence lifetime. Systematical experimental characterization and molecular dynamics simulation unravel the key role of stereoregularity in determining the formation of different pyridine aggregates that strongly influence the CL performance. Moreover, the different luminescence shows great potential in excitation divided information display and time‐resolved encrypted display. This work not only points to a new direction for developing NCLPs with excellent performance, but also broadens the applications of NCLPs materials.https://doi.org/10.1002/agt2.276cluster luminescenceexcitation‐dependent fluorescencepoly(2‐vinylpyridine)room‐temperature phosphorescencestereoregularity |
| spellingShingle | Hongxu Du Wenjing Zhao Yijie Xia Siyu Xie Yi Tao Yi Qin Gao Jie Zhang Xinhua Wan Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) Aggregate cluster luminescence excitation‐dependent fluorescence poly(2‐vinylpyridine) room‐temperature phosphorescence stereoregularity |
| title | Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) |
| title_full | Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) |
| title_fullStr | Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) |
| title_full_unstemmed | Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) |
| title_short | Effect of stereoregularity on excitation‐dependent fluorescence and room‐temperature phosphorescence of poly(2‐vinylpyridine) |
| title_sort | effect of stereoregularity on excitation dependent fluorescence and room temperature phosphorescence of poly 2 vinylpyridine |
| topic | cluster luminescence excitation‐dependent fluorescence poly(2‐vinylpyridine) room‐temperature phosphorescence stereoregularity |
| url | https://doi.org/10.1002/agt2.276 |
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