Aggregation‐Induced Emission of Tetraphenylethylene in Styrene‐Based Polymers

Iasilli, Giuseppe; Battisti, Antonella; Tantussi, Francesco; Fuso, Francesco; Allegrini, M.; Ruggeri, Giacomo; Pucci, Andrea

doi:10.1002/macp.201300698

Cited by 63 publications

(36 citation statements)

References 43 publications

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“…Guided by the RIM working mechanism, when AIEgens are doped into polymer matrix with different rigidities, their emission would change according to the surrounding environment. Pucci and coworkers have ingeniously applied TPE as a morphological probe for several styrene‐based polymers to distinguish the host polymer matrixes according to their different composition, architecture, and inherent viscosity as well as the intrinsic stiffness . Similarly, our group has demonstrated a simple, fast, and powerful method for high‐contrast visualization and differentiation of micrometer‐sized phase separation in polymer blends using AIEgen as dopant and probe ( Figure A) .…”

Section: Physical Doping Aiegens With Polymer Materialsmentioning

confidence: 91%

The Marriage of Aggregation‐Induced Emission with Polymer Science

Qiu

Liu

Lam

et al. 2018

Macromol. Rapid Commun.

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/marc.201800568. Aggregation-Induced EmissionAggregation-induced emission (AIE) is a novel photophysical phenomenon coined in 2001 by our group and describes the enhanced light emission of some luminogens in the aggregate or solid state. The combination of AIE research and polymer science is a smart approach to produce functional luminescent materials with mechanical strength and excellent processability for real-world applications. In this feature article, recent progress in AIE polymeric systems, including chemical synthesis and physical blending strategies, is summarized. Through chemical synthesis, various AIE-active polymers, such as covalently bonded polymers, supramolecular polymers, and nonconjugated luminescent polymers, can be obtained. Serving as environmentally sensitive probes, AIE luminogens can also be physically doped into polymers to generate interesting systems. Finally, outlooks and perspectives on the future direction of AIE polymeric systems are discussed.

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Section: Physical Doping Aiegens With Polymer Materialsmentioning

confidence: 91%

The Marriage of Aggregation‐Induced Emission with Polymer Science

Qiu

Liu

Lam

et al. 2018

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

“…This work was initially designed to determine the phase dispersion behavior of TPE in phase-separated domains of the poly(b-styrene-b-butadiene-b-styrene) (SBS) thermoplastic elastomer [96]. It was actually found that the TPE emission at room temperature resulted as being enhanced in SBS films.…”

Section: Aie and Mechanochromic Fluorescent Polymersmentioning

confidence: 99%

Mechanochromic Fluorescent Polymers with Aggregation-Induced Emission Features

Pucci

2019

Sensors

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Mechanochromic polymers are defined as materials that are able to detect a mechanical stress through an optical output. This feature has evoked a growing interest in the last decades, thanks to the progress of chromogenic molecules whose optical characteristics and chemical functionalities allow their effective insertion in many thermoplastic and thermoset matrices. Among the different types of fluorogenic probes able to detect mechanical solicitations, those with aggregation-induced emission (i.e., AIEgens) have attracted tremendous interest since their discovery in 2001. In the present review, the main principles behind the AIEgens working behavior are introduced along with the current state of knowledge concerning the design and preparation of the derived mechanochromic fluorescent polymers. Examples are provided concerning the most ingenious solution for the preparation of chromogenic materials, starting from different types of commodity plastics or synthetic polymers and combined with the latest AIE technology to provide the most sensitive response to mechanical stress.

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“…Contrary to the “classical” behaviour of organic fluorophores, these molecules emit weakly or moderately in dilute solutions, amorphous or disordered solids but become very efficiently emissive when aggregated in concentrated solutions or in crystalline states. Over the last years, a real effort has been made to understand and optimize the luminescent properties of chromophores exhibiting AIE (AIEgens) in order to use them in high‐tech innovative devices such as light‐emitting diode (OLED) or luminescent solar concentrators (LSC) . To incorporate these luminophores into such optoelectronic devices, luminescent molecules should be in assemblies into thin films, aggregates or polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

In Silico Investigation of the Aggregation‐Caused Quenching: the “Tolane‐Based Molecule” Case

2019

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A tolane-based molecule, the 4-fluorophenyl 4-((4-(octyloxy) phenyl)ethynyl)-benzoate (FOEB), was recently reported to show Crystallisation-Induced Emission (CIE) and Aggregation-Caused Quenching (ACQ) [Tong et al., J. Phys. Chem. C, 2015, 119, 21875]. In this work, we rely on a combination of tailored computational methods based on molecular dynamics, (TD-) DFT and ONIOM QM/QM' calculations, to investigate the structural and optical properties of FOEB in solution, crystal and aggregate. First, the computation of the Huang-Rhys factors and the reorganization energies can rationalize the modulation of the emission efficiency observed when changing the solvent polarity. The moderate fluorescence quenching observed in solution is due to the photophysical energy dissipation caused by low-frequency vibrational modes involving the lateral groups, along with motions out of the plane of the molecule. In crystalline environment, due to the packing arrangment, there is a restrictriction of intramolecular vibration (RIV) mechanism which should open the radiative decay channels. On the opposite, within the aggregate, the observed ACQ arises from two different phenomena, the energy dissipation during the internal conversion process through the low-frequency vibration mode identified in solution and a moderate energy loss through excitonic couplings.[a] L.

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Aggregation‐Induced Emission of Tetraphenylethylene in Styrene‐Based Polymers

Cited by 63 publications

References 43 publications

The Marriage of Aggregation‐Induced Emission with Polymer Science

The Marriage of Aggregation‐Induced Emission with Polymer Science

Mechanochromic Fluorescent Polymers with Aggregation-Induced Emission Features

In Silico Investigation of the Aggregation‐Caused Quenching: the “Tolane‐Based Molecule” Case

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