Nonaromatic Persistent Room‐Temperature Phosphorescent Hydrogels with Shape Memory Behavior and Ultrahigh Elastic Moduli Based on Partially Hydrolyzed Polyacrylonitrile DOI

Wendi Xie,

Junwen Deng,

Yanjun Cai

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 4, 2025

Abstract Organic room‐temperature phosphorescent (RTP) hydrogels, especially those based on nontraditional luminogens, hold great potential for various applications. However, developing nonaromatic hydrogels with excellent mechanical properties and multifunctionality alongside long lifetimes remains challenging. Herein, a series of RTP are prepared by utilizing the hydrophobic interactions coordinate bonding partially hydrolyzed polyacrylonitrile (PHPAN). The initial hydrogel exhibits strong fluorescence yet weak short‐lifetime RTP. When is treated immersing in Zn 2+ solution heating–cooling process, obtained significant lifetime 178.5 ms, an elastic modulus 161.6 MPa, tensile strength 10.9 as well thermally stimulated shape memory behavior anti‐swelling property. emission originates from aggregation cyano groups, dramatically improved arise formation optimizing ‐carboxylate bonds during processes enhanced which stiffens network suppresses nonradiative decay. This work provides reliable strategy development mechanically multifunctional hydrogels.

Язык: Английский

Nonaromatic Persistent Room‐Temperature Phosphorescent Hydrogels with Shape Memory Behavior and Ultrahigh Elastic Moduli Based on Partially Hydrolyzed Polyacrylonitrile DOI

Wendi Xie,

Junwen Deng,

Yanjun Cai

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 4, 2025

Abstract Organic room‐temperature phosphorescent (RTP) hydrogels, especially those based on nontraditional luminogens, hold great potential for various applications. However, developing nonaromatic hydrogels with excellent mechanical properties and multifunctionality alongside long lifetimes remains challenging. Herein, a series of RTP are prepared by utilizing the hydrophobic interactions coordinate bonding partially hydrolyzed polyacrylonitrile (PHPAN). The initial hydrogel exhibits strong fluorescence yet weak short‐lifetime RTP. When is treated immersing in Zn 2+ solution heating–cooling process, obtained significant lifetime 178.5 ms, an elastic modulus 161.6 MPa, tensile strength 10.9 as well thermally stimulated shape memory behavior anti‐swelling property. emission originates from aggregation cyano groups, dramatically improved arise formation optimizing ‐carboxylate bonds during processes enhanced which stiffens network suppresses nonradiative decay. This work provides reliable strategy development mechanically multifunctional hydrogels.

Язык: Английский

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