Hyperbranching-Enhanced-Emission Effect Discovered in Hyperbranched Poly(4-(cyanomethyl)phenyl methacrylate)

Fang, Laiping; Huang, Chi‐Yue; Shabir, Ghulam; Liang, Jinlun; Liu, Zhaoyang; Zhang, Hefeng

doi:10.1021/acsmacrolett.9b00864

Cited by 26 publications

(22 citation statements)

References 42 publications

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“…[26,27] Despite great efforts have made to modulate the emission performance of nonconventional polymeric luminogens, their emission mechanism, especially for their emission center, is still controversial. Various assumptions have been suggested, including the oxidation of terminal group (unsaturated hydroxylamine center), [28,29] crosslinking of the polymer chain (linear structure vs hyperbranched structure), [30,31] hydrogen bond formation, [32] and electron delocalization. [11,33] Each view has its limitations which makes it difficult to reach a consensus.…”

Section: Introductionmentioning

confidence: 99%

Hydrated Hydroxide Complex Dominates the AIE Properties of Nonconjugated Polymeric Luminophores

Yang

Zhou

Shan

et al. 2022

Macromol. Rapid Commun.

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Nontraditional intrinsic luminescence (NTIL) which always accompanied with aggregation‐induced emission (AIE) features has received considerable attention due to their importance in the understanding of basic luminescence principle and potential practical applications. However, the rational modulation of the NTIL of nonconventional luminophores remains difficult, on account of the limited understanding of emission mechanisms. Herein, the emission color of nonconjugated poly(methyl vinyl ether‐alt‐maleic anhydride) (PMVEMA) can be readily regulated from blue to red by controlling the alkalinity during the hydrolysis process. The nontraditional photoluminescence with AIE property is from the new formed p‐band state, resulting from the strong overlapping of p orbitals of the clustered O atoms through space interactions. Hydrated hydroxide complexes embedded in the entangled polymer chain make big difference on the clustering of O atoms which dominates the AIE property of nonconjugated PMVEMA. These new insights into the photoluminescence mechanism of NTIL should stimulate additional experimental and theoretical studies and can benefit the molecular‐level design of nontraditional chromophores for optoelectronics and other applications.

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Section: Introductionmentioning

confidence: 99%

Hydrated Hydroxide Complex Dominates the AIE Properties of Nonconjugated Polymeric Luminophores

Yang

Zhou

Shan

et al. 2022

Macromol. Rapid Commun.

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“…16). 86 The HEE effect provides a universal strategy to expand the current range of highly efficient atypical chromophores. Up to now, the AIE mechanism is still guiding the synthesis of atypical luminescent chromophores.…”

Section: Fluorescence Systemsmentioning

confidence: 99%

Recent advances in oligomers/polymers with unconventional chromophores

Jiang

Zhu

et al. 2021

Mater. Chem. Front.

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“…26,27 Despite great efforts have made to modulate the emission performance of nonconventional polymeric luminogens, their emission mechanism, especially for their emission center, is still controversial. Various assumptions have been suggested, including the oxidation of terminal group (unsaturated hydroxylamine center), 28,29 crosslinking of the polymer chain (linear structure vs. hyperbranched structure), 30,31 hydrogen bond formation 32 and electron delocalization. 11,33 Each view has its limitations which makes it difficult to reach a consensus.…”

Section: Introductionmentioning

confidence: 99%

Hydrated Hydroxide Complex Dominates the AIE Property of Nonconjugated Polymeric Luminophores

Yang

Zhou²,

Shan³

et al. 2021

Preprint

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Nontraditional intrinsic luminescence (NTIL) which always accompanied with aggregation-induced emission (AIE) features has received considerable attention due to their importance in the understanding of basic luminescence principle and potential practical applications. However, the rational modulation of the NTIL of nonconventional luminophores remains difficult, on account of the limited understanding of emission mechanisms. Herein, the emission colour of nonconjugated poly(methyl vinyl ether-alt-maleic anhydride) (PMVEMA) could be readily regulated from blue to red by controlling the alkalinity during the hydrolysis process. The nontraditional photoluminescence with AIE property was from the new formed p-band state, resulting from the strong overlapping of p orbitals of the clustered O atoms though space interactions. Hydrated hydroxide complexes embedded in the entangled polymer chain make big difference on the clustering of O atoms which dominates the AIE property of nonconjugated PMVEMA. These new insights into the photoemission mechanism of NTIL should stimulate additional experimental and theoretical studies and could benefit the molecular-level design of nontraditional chromophores for optoelectronics and other applications.

show abstract

Hyperbranching-Enhanced-Emission Effect Discovered in Hyperbranched Poly(4-(cyanomethyl)phenyl methacrylate)

Cited by 26 publications

References 42 publications

Hydrated Hydroxide Complex Dominates the AIE Properties of Nonconjugated Polymeric Luminophores

Hydrated Hydroxide Complex Dominates the AIE Properties of Nonconjugated Polymeric Luminophores

Recent advances in oligomers/polymers with unconventional chromophores

Hydrated Hydroxide Complex Dominates the AIE Property of Nonconjugated Polymeric Luminophores

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