Orange-red and white-emitting nonconventional luminescent polymers containing cyclic acid anhydride and lactam groups

Shang, Cong; Zhao, Yaxin; Long, Jiayu; Ji, Ying; Wang, Huiliang

doi:10.1039/c9tc05948b

Cited by 63 publications

(54 citation statements)

References 37 publications

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“…Keeping this in mind, Shang et al have synthesized poly(ITA- co -N-vinylpyrrolidone) (PIVP) or poly(ITA- co -vinylcaprolactum) (PIVC), which exhibited a maximum emission wavelength in the orange-red region (627 and 611 nm) and white emission under 365 nm UV irradiation. 68 In another very interesting work, Zhao et al have reported the fluorescence and solvatochromic behavior from the random copolymer of maleic anhydride (MAh) and vinyl acetate (PMV) ( Figure 11 ). 69 Simulation studies on PMAh indicated a helical arrangement of SA units with an interunit dihedral angle of −67° and a pretty small distance of separation of ∼3 Å ( Figure 11 D).…”

Section: Aie From Cluster Formationmentioning

confidence: 99%

“…Furthermore, they exhibit excitation-dependent emission and emit dark red light on excitation with red light, but in the solid state, they emit white light under 365 nm radiation. 68 Zhao et al have shown very interesting applications of their synthesized polyether molecules in explosive detection. 72 The concentrated solution of polythioether in DMF (50 mg/mL) has shown quenching in the fluorescence emission intensity of the signal at 435 nm upon addition of electron-deficient picric acid (PA) (an explosive) because of the excitonic transfer from the polymer to PA. A detectable extent of PL intensity decay is observed upon addition of 3.71 ppm PA, which subsequently shows a gradual decrease upon incremental addition of PA.…”

Section: Applicationsmentioning

confidence: 99%

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Fluorescence in “Nonfluorescent” Polymers

2020

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Recently, a great deal of research has been started on generating fairly strong photoluminescence from organic molecules without having any conjugated π-system or fluorophore. Discrete chromophores or auxochromophores termed as “subfluorophores” may undergo “space conjugation” via co-operative intramolecular conformation followed by intermolecular aggregation to generate fluorescence or sometimes phosphorescence emission. Polymeric materials are important in this regard as nonconjugated polymers self-assemble/aggregate in a moderately concentrated solution and also in the solid state, producing membranes, films, and so forth with good physical and mechanical properties. Therefore, promoting fluorescence in these commodity polymers is very much useful for sensing, organic light emitting diodes (OLED), and biological applications. In this perspective, we have discussed the aggregation-induced emission from four different types of architectures, for example, (i) dendrimers or hyperbranched polymers, (ii) entrapped polymeric micellar self-assembly, (iii) cluster formation, and (iv) stretching-induced aggregation, begining with the genesis of fluorescence from aggregation of propeller-shaped small organic molecules. The mechanism of induced fluorescence of polymers with subfluorophoric groups is also discussed from the theoretical calculations of the energy bands in the aggregated state. Also, an attempt has been made to highlight some useful applications in the sensing of surfactants, bacteria, cell imaging, drug delivery, gene delivery, OLED, and so forth.

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Section: Aie From Cluster Formationmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

Fluorescence in “Nonfluorescent” Polymers

2020

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“…Accordingly, biocompatible intrinsically fluorescent terpolymers prepared through in situ protruded new multifunctional monomers are more advantageous and cost-friendly, and require facile and robust polymerization strategy. [16,17] Moreover, intrinsically fluorescent macromolecular luminogens composed of biocompatible amide, ester, methylol, dimethyl amine, amidoacid, and amido-ester functionalities should facilitate cellular adhesion in concentration dependent cell-imaging.…”

Section: Doi: 101002/marc202000522mentioning

confidence: 99%

Nonconjugated Biocompatible Macromolecular Luminogens for Sensing and Removals of Fe(III) and Cu(II): DFT Studies on Selective Coordination(s) and On‐Off Sensing

Dutta

Mahapatra

Deb

et al. 2020

Macromol. Rapid Commun.

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This work reports the design and synthesis of two nonaromatic biocompatible macromolecular luminogens, i.e., 2‐(dimethylamino)ethyl methacrylate‐co‐2‐(dimethylamino)ethyl 3‐(N‐(methylol)acrylamido)‐2‐methylpropanoate‐co‐N‐(methylol)acrylamide/DMAEMA‐co‐DMAENMAMP‐co‐NMA (P1) and methacrylic acid‐co‐3‐(N‐(methylol)acrylamido)‐2‐methylpropanoic acid‐co‐N‐(methylol)acrylamide/MEA‐co‐NMAMPA‐co‐NMA (P2), prepared through in situ anchored acrylamido‐ester/DMAENMAMP and acrylamido‐acid/NMAMPA third comonomers, respectively, in a facile polymerization of two non‐luminous monomers in water medium to circumvent the drawbacks related to aggregation‐caused quenching of aromatic luminogens. The structures of P1/P2, in situ anchored comonomers, fluorophores, N‐branching associated n–π* interactions, and hydrogen bonding assisted aggregation‐enhanced emissions are comprehended by nuclear magnetic resonance, Fourier transform infrared (FTIR), X‐ray photoelectron spectroscopy (XPS), ultraviolet‐visible, thermogravimetric analysis (TGA), dynamic light scattering (DLS), transmission electron microscopy (TEM), fluorescence lifetime, and fluorescence imaging. P1 and P2 are appropriate for sensitive detections/exclusions of Fe(III)/Cu(II) and cell‐imaging. The intrinsic fluorescence, on‐off sensing, selective coordinations of Fe(III) and Cu(II) with fluorophores, emission quenching mechanisms, and removals of Fe(III) and Cu(II) are investigated by DFT/NTO analyses of P1/P2 and Fe(III)‐P1 and Cu(II)‐P2 complexes, XPS, and isotherms and kinetics parameters. The excellent biocompatibilities, comparable limit of detections, i.e., 1.70 × 10−7 and 1.59 × 10−7 [m], and higher adsorption capacities, i.e., 77.25 and 154.13 mg g−1, at low ppm; 303 K; and pH = 7 compel P1/P2 to be acceptable for multipurpose applications.

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“…PIVC and PIVP exhibited aggregation enhanced emission (AEE) and AIE characteristics, showing maximum emission wavelengths in the orange‐red region (627 and 611 nm), and orange‐red and bright white emissions under 365 nm UV irradiation. [ 130 ]…”

Section: Recent Advances In Organic and Polymer Luminescent Materialsmentioning

confidence: 99%

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

Zhang

Pan

et al. 2020

Adv Materials Technologies

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The development and application of white light‐emitting diode (WLED) lighting technology are of great significance for reducing energy consumption. Commonly used WLED devices rely on the use of rare earth luminescent materials. However, rare earth elements are nonrenewable resources, and mining and refining processes have an adverse impact on the environment. In recent years, new white light‐emitting luminescent materials that do not contain rare earth elements have been developed, such as quantum dots, fluorescent carbon dots, perovskite luminescent materials, organic luminescent materials, and metal–organic framework materials, among others, some of which are successfully applied in the development of WLEDs. Herein the latest progress in this research field is reviewed, analyzing the construction of practical WLED devices and comparing the characteristics of newly developed rare earth‐free luminescent materials. Last, the future development prospects in this field are described.

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Orange-red and white-emitting nonconventional luminescent polymers containing cyclic acid anhydride and lactam groups

Abstract: Nonconventional luminescent copolymers poly(itaconic anhydride-co-vinyl caprolactam) (PIVC) and poly(itaconic anhydride-co-vinyl pyrrolidone) (PIVP) emit strong orange-red and bright white emissions, respectively.

Cited by 63 publications

References 37 publications

Fluorescence in “Nonfluorescent” Polymers

Fluorescence in “Nonfluorescent” Polymers

Nonconjugated Biocompatible Macromolecular Luminogens for Sensing and Removals of Fe(III) and Cu(II): DFT Studies on Selective Coordination(s) and On‐Off Sensing

Rare Earth‐Free Luminescent Materials for WLEDs: Recent Progress and Perspectives

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