探讨反阴离子对三苯胺基双吡啶盐和聚吡啶盐发光行为的影响

IF 5.1 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2025-09-20 DOI:10.1016/j.reactfunctpolym.2025.106481

Kai-Jhen Huang , Yu-Jen Shao , Chin-Hsuan Lin , Peng-Yi Lin , Yu-Ting Kao , Yan-Ding Lin , Pi-Tai Chou , Guey-Sheng Liou

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引用次数: 0

摘要

本文设计并合成了两个系列的受体-给体-受体（A−D−A）结构三苯胺（TPA）基双吡啶盐，以及相应的聚吡啶盐。具有溶剂依赖性和反阴离子依赖性发射特征的双吡啶盐的分子内电荷转移（ICT）效应在光致发光（PL）光谱中得到了体现，并通过循环伏安法和理论方法得到了证实。制备的双吡啶盐的PL量子产率（ΦPL）可以通过加入更大的阴离子（包括BF4−，ClO4−和PF6−）来促进在纯膜中的进一步增强；其中CN-BF4达到ΦPL高达88%。成功制备了高分子量（Mw > 94 kDa）的PH和PCN聚合物，并对其进行了表征，显示出聚集诱导发射（AIE）和聚集诱导发射增强（AIEE）行为，其中PCN- bf4在整齐膜中表现出最大的ΦPL（22%）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Exploring countered anions effect on the luminescence behaviors of triphenylamine-based dipyridinium salts and poly(pyridinium salts)

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Exploring countered anions effect on the luminescence behaviors of triphenylamine-based dipyridinium salts and poly(pyridinium salts)

Two series of acceptor-donor-acceptor (A−D−A) structural triphenylamine (TPA)-based dipyridinium salts, as well as the corresponding poly (pyridinium salts), have been strategically designed and synthesized in this work. Substantial intramolecular charge transfer (ICT) effects of dipyridinium salts with solvent- and counter anion-dependent emission features manifested in photoluminescence (PL) spectroscopy and confirmed by cyclic voltammetry and theoretical approaches. The PL quantum yields (Φ_PL) of prepared dipyridinium salts could facilitate further enhancement in neat film by incorporating larger anions, including BF₄⁻, ClO₄⁻, and PF₆⁻; among them, CN-BF₄ achieved a Φ_PL as high as 88 %. PH and PCN polymers were also successfully prepared with high molecular weight (M_w > 94 kDa) and characterized, revealing aggregation-induced emission (AIE) and aggregation-induced emission enhancement (AIEE) behaviors, in which PCN-BF₄ demonstrates the greatest Φ_PL of 22 % in the neat film.

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.