Sensitive and reliable detection of glass transition of polymers by fluorescent probes based on AIE luminogens

Bao, Suping; Wu, Qing; Qin, Wei; Yu, Qiuling; Wang, Jing; Liang, Guodong; Tang, Ben Zhong

doi:10.1039/c5py00308c

Cited by 68 publications

(80 citation statements)

References 36 publications

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“…1,[22][23][24][25][26][27][28][29] In this line, Guan et al designed and synthesized a unique uorescent surfactant (TPE-DTAB), which combined both the properties of the aggregation-induced emission (AIE) and amphilicity which together were used to image the macrodispersion of the layered double hydroxide llers (montmorillonite) in the polymer matrix. 30 Wang's group also visualized the entire gelation process of chitosan (CS) by the synthesized AIE uorogenic probe, that is, tetraphenylethene-labelled chitosan (TPE-CS).…”

Section: 21mentioning

confidence: 99%

Studying a novel AIE coating and its handling process via fluorescence spectrum

Yao

Wang

et al. 2017

RSC Adv.

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For polymer materials, both their compositions and preparation process greatly influence their service performance. Thus, the sound understanding of the relationship between materials' preparation processes and their properties is paramount. However, current research methods are partially limited due to the absence of a direct testing method to track the entire process, e.g. synthesizing, curing, ageing, and so on. With the ability for real-time sensitive characterization, fluorescence spectroscopy may be applied in testing polymer materials' performance. Here, we synthesized a novel aggregation induced emission (AIE) resin named TPE-EPOXY resin and prepared an AIE coating based on it.According to restriction of intramolecular rotation (RIR) mechanism, the preparation, curing, and aging processes for the AIE polymer resins & coatings could be studied with real-time observation. In addition, their properties could also be studied systematically. The results in this paper pave a good way to understand the relationship between the internal structure and the properties of polymer materials.Moreover, the prepared AIE polymer resins has a potential to expand the application fields of the AIE mechanism.

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Section: 21mentioning

confidence: 99%

Studying a novel AIE coating and its handling process via fluorescence spectrum

Yao

Wang

et al. 2017

RSC Adv.

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“…AIE molecules possess the advantages of high quantum yields in the solid state, good stability at high temperatures, and restricted molecular motions in rigid environments. Recently, the glass transition temperatures of polymers have been successfully investigated by employing AIE molecules as probes . The TPE molecule was doped into the polymer and the fluorescent intensities of the polymer were studied at various temperature ranges.…”

Section: Process Monitoringmentioning

confidence: 99%

“…Recently,t he glass transition temperatureso fp olymers have been successfully investigated by employingA IE molecules as probes. [59] The TPE molecule was doped into the polymer and the fluorescent intensities of the polymer were studied at various temperature ranges.T he fluorescent emission spectra showedc ontinuouslyd ecreasing emissioni ntensity with increasingt emperature. At urning point for the slope can be observed in the curves, which was determined as the glass transition temperature of the polymer.T he mechanism for the fluorescence decrease has been studied.…”

Section: Glass Transition Of Polymersmentioning

confidence: 99%

Aggregation‐Induced Emission for Visualization in Materials Science

Lin

2019

Chemistry An Asian Journal

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Fluorescent imaging techniques have attracted much attention as a powerful tool to realize the visualization of structural and morphological evolution of various materials. However, the traditional fluorescent dyes usually suffered from aggregation‐caused quenching, which severely limits the visualization results. In contrast, aggregation‐induced emission (AIE) molecules with high quantum yields in the condensed state showed great opportunities for imaging techniques. In this feature article, recent progresses in visualization with AIE molecules are discussed. Assembly processes including crystallization, gelation process, and dissipative assembly have been observed. To better study information obtained regarding the processes, visualization during reactions, phase transitions, and molecular motions are successfully presented. Based on these successes, AIE molecules were further applied for phase recognition, macro‐dispersion evaluation, and damage detection. Finally, we also present the outlook and perspectives, in our opinion, for the development of visualization by AIE molecules.

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“…Now, the AIE or AIEE becomes one of the top research fields . Because of the high fluorescence intensity and photoluminescence quantum efficiency caused by the AIE or AIEE effect, AIE luminogens have extensively been applied in various fields, including fluorescent sensors, nonlinear optical applications, cell imaging, light‐emitting diodes (OLEDs), and solar cells . Tian and co‐workers reported a series of conjugated dendrimers with the obvious AIE properties, which possessed markedly large intrinsic two‐photon absorption cross section.…”

Section: Introductionmentioning

confidence: 99%

“…Up to date, several kinds of AIE or AIEE small molecules have been developed, such as 1‐methyl‐1,2,3,4,5‐pentaphenylsilole, indolo[3,2‐ b ]carbazolederivatives, V‐shaped polyaromatic amphiphiles, boron diiminates, tetraphenylethene (TPE) derivatives, and so on. Systematic studies have suggested that the restriction of intramolecular rotation (RIR) is the main cause of the AIE or AIEE effect .…”

Section: Introductionmentioning

confidence: 99%

Polysiloxane‐Modified Tetraphenylethene: Synthesis, AIE Properties, and Sensor for Detecting Explosives

Yang

Ren

et al. 2016

Macromol. Rapid Commun.

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Polysiloxane-modified tetraphenylethene (PTPESi) is successfully synthesized by attaching tetraphenylethene (TPE) units onto methylvinyldiethoxylsiloxane and subsequent polycondensation. Introducing polysiloxane into TPE has minimal effect on the photophysical properties and aggregation-induced emission behavior of TPE. The highest occupied and lowest unoccupied molecular orbital (HOMO and LUMO) energy levels of PTPESi are located mainly on the tetraphenylethene moieties. The fluorescence intensity and the half width of the emission peak of PTPESi before and after annealing at 120 °C for 12 h are nearly the same, indicating high thermal stability and morphological stability. In addition, use of PTPESi film as a sensor toward the vapor-phase detection of explosives is also studied and it displays quite high fluorescence quenching efficiency and good reversibility.

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Sensitive and reliable detection of glass transition of polymers by fluorescent probes based on AIE luminogens

Abstract: A sensitive and reliable approach for the detection of the glass transition of polymers using AIE luminogens as fluorescent probes was reported.

Cited by 68 publications

References 36 publications

Studying a novel AIE coating and its handling process via fluorescence spectrum

Studying a novel AIE coating and its handling process via fluorescence spectrum

Aggregation‐Induced Emission for Visualization in Materials Science

Polysiloxane‐Modified Tetraphenylethene: Synthesis, AIE Properties, and Sensor for Detecting Explosives

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