A toughening indole‐based epoxy film with efficient anti‐counterfeiting properties driven by cation–<i>π</i> interaction

Tang, Qiaolin; Yuan, Lu; Kang, Ming; Huang, Ying; Yang, Li; Yin, Qiang; Chang, Guanjun

doi:10.1002/pi.6597

Cited by 4 publications

(1 citation statement)

References 57 publications

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“…The synthetic procedure for preparing 1-(oxiran-2-ylmethyl)-1 H -indole (INE) followed previously reported methods described in our work. γ-Aminopropyltriethoxysilane (APTES) was procured from Shanghai Aladdin Reagent Co., Ltd. Potassium bromide (KBr, spectral purity, SP) was sourced from Shanghai Macklin Reagent Co., Ltd. Tetraethoxysilane (TEOS), anhydrous ethanol, ammonium hydroxide (25–28%), and toluene were all acquired from Chengdu Kelong Reagent Co., Ltd. Deionized water was produced in-house within a laboratory setting . Unless otherwise specified, all solvents were purchased from commercial sources and used as received, and all of the chemical reagents used in this experiment were analytical grade without further purification.…”

Section: Methodsmentioning

confidence: 99%

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN

Tang,

Zhu,

et al. 2024

Langmuir

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In the present study, a novel silane coupling agent, designated INSi, was synthesized via a facile synthetic route, incorporating indole-functional moieties. This agent was further employed for the surface modification of homemade silica nanomicrospheres (SMPs). The ensuing nanomicrosphere composite, denoted as SiO 2 @IN, exemplified pronounced interfacial π−π interactions. Optimization of the reaction conditions was conducted using the response surface optimization technique. Subsequent validation of interfacial π−π interactions was accomplished through a synergistic approach, integrating theoretical calculations and comprehensive analyses of spectral and morphological attributes exhibited by the SiO 2 @IN.

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Section: Methodsmentioning

confidence: 99%

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN

Tang,

Zhu,

et al. 2024

Langmuir

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Constructing High‐Performance Composite Epoxy Resins: Interfacial π‐π Stacking Interactions‐Driven Physical Rolling Behavior of Silica Microspheres

Tang,

Li,

Liu

et al. 2024

Advanced Materials

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The intrinsic compromise between strength and toughness in composite epoxy resins significantly constrains their practical applications. In this study, a novel strategy is introduced, leveraging interfacial π‐π stacking interactions to induce the “rolling behavior” of microsphere fillers, thereby facilitating efficient energy dissipation. This approach is corroborated through theoretical simulations and experimental validation. The resulting composite epoxy resin demonstrates an impressive 49.8% enhancement in strength and a remarkable 358.9% improvement in toughness compared to conventional epoxy resins, accompanied by substantially reduced hysteresis. Moreover, this system achieves reversible closed‐loop recyclability and rapid repair capabilities. The preliminary demonstration of “force‐temperature equivalence” further establishes a novel pathway for the design of high‐performance composite epoxy materials.

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Engineering Tunable Light Color in High-Performance Rare Earth Fluorescent Polymers via Cation-π Interactions

Tang,

Zhu,

et al. 2024

ACS Appl. Polym. Mater.

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A toughening indole‐based epoxy film with efficient anti‐counterfeiting properties driven by cation–π interaction

Cited by 4 publications

References 57 publications

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN

Constructing High‐Performance Composite Epoxy Resins: Interfacial π‐π Stacking Interactions‐Driven Physical Rolling Behavior of Silica Microspheres

Engineering Tunable Light Color in High-Performance Rare Earth Fluorescent Polymers via Cation-π Interactions

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A toughening indole‐based epoxy film with efficient anti‐counterfeiting properties driven by cation–π interaction

Cited by 4 publications

References 57 publications

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO2@IN

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO2@IN

Constructing High‐Performance Composite Epoxy Resins: Interfacial π‐π Stacking Interactions‐Driven Physical Rolling Behavior of Silica Microspheres

Engineering Tunable Light Color in High-Performance Rare Earth Fluorescent Polymers via Cation-π Interactions

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Product

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About

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN

Demonstration of π–π Stacking at Interfaces: Synthesis of an Indole-Modified Monodisperse Silica Microsphere SiO₂@IN