Coronene Doped Rubber-Toughened Plastics: Easily Photoactivatable, Visible Light Excitable, Stress-Whitening Quenching and Thermally Recoverable Ultralong Phosphorescence

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-02-06 DOI:10.1021/acsmaterialslett.4c0258210.1021/acsmaterialslett.4c02582

Jinbin Liu, Guanyu Liu, Shiguo Zhang, Shanfeng Xue, Qikun Sun* and Wenjun Yang*,

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Abstract

If rubber-toughened plastics can effectively stabilize organic triplet exciton radiation, then a new class of room temperature phosphorescent (RTP) polymers can be developed. In the current work, the outstanding triplet generating and radiating coronene (Cor) is doped into HIPS, ABS, and MBS, and the thermoplastic processed sheets emit bright and ultralong RTP with lifetimes of 3.200–3.700 s after being excited by 365 nm light. Under the impact of mechanical forces, the stress whitening region no longer emits RTP afterglow, whereas heat healing can recover afterglow, implying the potential application in detecting material damage and repair and indicating that polymer cohesion and density remarkably affect triplet thermal and oxygen stability. We further reveal that rubber-plastic secondary “core-shell” structures can synergistically inhibit triplet thermal deactivation and oxygen quenching, and we also confirm that these Cor/polymers show visible light excitable RTP properties. This work represents a breakthrough advancement in RTP materials and concepts.

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如果橡胶增韧塑料能有效稳定有机三重激子辐射，那么就能开发出一类新型室温磷光聚合物（RTP）。在当前的研究中，我们在高密度聚苯乙烯（HIPS）、丙烯腈-丁二烯-苯乙烯（ABS）和丁苯橡胶（MBS）中掺入了具有优异三重子产生和辐射能力的冠烯（Cor），加工后的热塑性片材在 365 纳米光的激发下会发出明亮且超长的 RTP，寿命可达 3.200-3.700 秒。在机械力的作用下，应力增白区不再发出 RTP 余辉，而热修复区则可以恢复余辉，这意味着它在检测材料损伤和修复方面具有潜在的应用价值，同时也表明聚合物的内聚力和密度会显著影响三重态的热稳定性和氧稳定性。我们进一步揭示了橡胶-塑料二级 "核壳 "结构可以协同抑制三重热失活和氧淬灭，我们还证实这些 Cor/聚合物具有可见光可激发 RTP 特性。这项工作代表了 RTP 材料和概念的突破性进展。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.