Synthesis of Fluorescent Polymers from Hydrostyryl Pyridinium Derivatives and Their Multichromatic Fluorescence Behaviors DOI
Hefeng Zhang, Ying Zou, Xiaolong Lu

et al.

Published: Jan. 1, 2023

To synthesize fluorescent polymers, hydrostyryl pyridinium derivatives were methacrylated affording monomers of MA-SP-OH-X (X = NO2, F, substituted group on phenyl ring) followed by free-radically homo- and copolymerized with methyl methacrylate (MMA), butyl acrylate (BA) styrene (St), respectively. The resulting copolymers showed green, orange red emissions significant multichromatic behaviors solvent- excitation-dependence. Moreover, P(BA-co-MA-SP-OH-NO2) behaved as a thermal elastomer high stretchability self-heal performance. In addition, the macro-additives, poly(vinylidene difluoride) films fabricated using electrospinning technique. unexpected attributed to enol-to-keto transition phenol in SP-OH moiety aggregation fluorophore moieties.

Language: Английский

Tunable Cluster Luminescence and High Quantum Yield in Amine-Modified Maleic Anhydride Polymers DOI

Weida Zhu,

Xiang Chen, Yang Wang

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Cluster luminescent materials (CLgens) with nonconjugated structures have attracted considerable attention. However, their low quantum yield and limited emission wavelengths, which are confined to the blue-green spectrum, continue restrict applicability. In this study, maleic anhydride polymer chains were modified N-tristyrylene-1,2-diamine (TPM-NH2), creating a secondary donor–acceptor structure through freely rotatable phenyl groups amino–anhydride interactions. This modification facilitated formation of charge transfer (CT) states strengthened through-space interaction (TSI), resulting in remarkable red shift wavelength from 400 640 nm. The flexible ethyl chain acted as bridging unit within framework, enhancing (TSCT) elevating (QY) 28.28%. research offers strategy for improving QY copolymers demonstrates potential controllable thereby broadening application domains, including light-conversion agricultural films.

Language: Английский

Citations

0
Emergent clusteroluminescence from nonemissive molecules DOI Creative Commons
Jianyu Zhang, Zuping Xiong, Haoke Zhang

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 25, 2025

Abstract Once considered the exclusive property of conjugated molecules, efficient and visible-light luminescence from non-conjugated nonemissive molecules in clustered state, known as clusteroluminescence (CL), has attracted much attention recently due to its special photophysical behaviors behind electronic interactions. This perspective discusses development CL phenomenon, followed by typical features, examples, mechanisms, potential applications materials, provide a comprehensive picture this emerging field. Starting with organic clusters, inorganic, metallic, hybrid clusters properties are also introduced, shift covalent interactions at molecular level non-covalent aggregate is invoked.

Language: Английский

Citations

0
Generation-dependent aggregation-induced emission from unconventional chromophore aggregation in phosphonate-functionalized Si-containing dendritic polymers DOI
Zhihui Yang,

Fanghao Sun,

Weizhi Tian

et al.

European Polymer Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113952 - 113952

Published: April 1, 2025

Language: Английский

Citations

0
Hyperbranched Poly(vinyl ether ester)s with Structure-Dependent Intrinsic Fluorescence: Synthesis, Properties, and Applications DOI
Qimin Jiang, Shuyi Zhang, Zixian Liu

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(7), P. 4127 - 4137

Published: March 19, 2024

In this study, nonconjugated hyperbranched poly(vinyl ether ester)s (HPVEEs) with carbon–carbon double bonds in their backbone were synthesized via bicyclo[2.2.2]-1,4-diazaoctane-catalyzed hydroxyl–yne click polymerization of triols diynes at 25 °C. Moreover, the branching behavior, structures, and properties HPVEEs correlation between structures performance analyzed by employing techniques such as size-exclusion chromatography, Fourier transform infrared spectroscopy, nuclear magnetic resonance, differential scanning calorimetry, thermogravimetric analysis, ultraviolet–visible fluorescence spectroscopy. Results demonstrated successful preparation thermally stable relatively high molecular weights, degree branching, regular structure excellent yields through efficient DABCO-catalyzed polymerization. These displayed concentration-enhanced excitation-dependent emission characteristics, which are attributed to cluster luminescence generated aggregation double-bond chromophores. Additionally, these exhibited a unique structure-dependent emission, wherein varied side chains regulated quantum yield but not color; differing carbon chain lengths could modulate color yield. Remarkably, other hydroxyl-containing compounds, β-cyclodextrin galactose, resulted polymers exhibiting low cytotoxicity bright cell imaging. Thus, study presents containing unconventional chromophores showing intrinsic fluorescence, is promising for application fields anticounterfeiting technology biomedical applications.

Language: Английский

Citations

3
Nonconventional Luminescent Polymers: Emission Regulation and Applications DOI Open Access
Xiang Chen,

Yining Sun,

Wang Zhang Yuan

et al.

Macromolecular Chemistry and Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 30, 2024

Abstract Nonconventional luminescent polymers have gained significant interest due to their outstanding water solubility, biocompatibility, solution‐processability, and scalability. Unlike traditional aromatic luminogens with extended π‐conjugation, distinctive photophysical properties arise from a mechanism known as clustering‐triggered emission (CTE). CTE involves the clustering of electron‐rich subunits, leading enhanced electron delocalization conformational rigidification, ultimately boosting photoluminescence (PL). Despite substantial advancements, challenges remain in optimizing efficiency PL tunability these polymers. This review delves into mechanism, examining recent advances regulating nonconventional The aim is uncover universal principles underlying mechanisms across diverse systems, providing theoretical foundation for further development potential applications materials fields such bioimaging, sensing, optoelectronics.

Language: Английский

Citations

3
Synthesis of fluorescent polymers from hydrostyryl pyridinium derivatives and their multichromatic fluorescence behaviors DOI
Ying Zou, Xiaolong Lu,

Jin Cai

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: 208, P. 112850 - 112850

Published: Feb. 13, 2024

Language: Английский

Citations

1
Unexpected Full-Color Luminescence Produced from the Aggregation of Unconventional Chromophores in Novel Polyborosilazane Dendrimers DOI Creative Commons

Yuang Li,

Yingli Zhu, Xiangcheng Li

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(43), P. 17988 - 17999

Published: Jan. 1, 2024

This work reports the novel example of an yttrium-branched polyborosilazane polymer exhibiting orange-yellow clusteroluminescence, and PY3 samples with ultra-broad emission spectra covering range 400–750 nm.

Language: Английский

Citations

1
Synthesis of Broad Excitation Fluorescent Microspheres Based on Clusteroluminescence and Their Application in Anti‐Counterfeiting and LED DOI
Liang He,

Xueyan Nan,

Peipei Wang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 15, 2024

Abstract The nonconventional polymer luminophores (NPLs) with white emission are scarce due to the challenges in regulating their clustering structures. In this work, polystyrene is employed develop a new kind of broad‐emitting clusteroluminescence (CL) through suitable cross‐linking and sulfonation. sulfonated porous poly(styrene‐co‐divinylbenzene) microspheres (SPDMs) exhibit broad spectra (400–700 nm) visible light region. Further characterization theoretical calculations show that through‐space conjugation (TSC) enhanced high sulfonation degrees (SD) main factor affecting luminescence microspheres. Monodisperse SPDMs low fluorescence distribution (CV < 5%) across 13 flow channels. Additionally, construct binary, Cu 2+ , pH‐responsive microarrays encrypt decode important information. Finally, developed for utilization as single‐component warm light‐converting emitting diodes (LEDs). These LEDs demonstrate Commission International de L’Eclairage (CIE) coordinates correlate color temperatures (CCT) (0.31, 0.321) (0.383, 0.41), 6611 4100 K, respectively. Notably, rendering index (CRI) value SPDMs‐50‐2 LED applications reaches an impressive 92. This study provides economical, simple, effective design strategy developing NPLs both monodispersity emission.

Language: Английский

Citations

1
Aliphatic tertiary amine based hyperbranched polymers with structure-dependent intrinsic fluorescence prepared via self-catalyzed hydroxyl–yne click polymerization DOI
Qimin Jiang,

Shuyi Guan,

Zixian Liu

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: unknown, P. 113671 - 113671

Published: Dec. 1, 2024

Language: Английский

Citations

0
Nonaromatic Polymers with Tunable Clusteroluminescence and Long-Lived Room-Temperature Phosphorescence DOI
Yang Wang, Yulong Zhao, Xiang Chen

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Organic room-temperature phosphorescence (RTP) materials have garnered significant attention for their potential applications in anticounterfeiting authentication and bioimaging, due to large Stokes shift prolonged lifetime. However, the traditional RTP often suffer from drawbacks such as a complex preparation process poor biocompatibility presence of aromatic structures. In this study, we present series nontraditional intrinsic clusteroluminescent that exhibit by introducing concerted interactions strong multiple ionic bonds hydrogen (H-bonds). A class poly(maleic anhydride-alt-vinyl acetate) (PMV) derivatives with emission are obtained hydrolysis PMV. On basis these experiments, anhydride-acrylamide) (PMA) were prepared maximum lifetime 442 ms quantum yield 21% utilizing bonding amide groups induced alcoholysis under alkaline conditions. The findings reveal strategic introduction promotes conformational rigidification, while robust H-bonds further restrict molecular motion, thereby minimizing nonradiative decay pathways leading efficient RTP. Information encryption humidity detection based on material been proven its unique sensitive water response properties.

Language: Английский

Citations

0