Near-Infrared-Triggered Self-Healing and Antibacterial Biobased Waterborne Polyurethane Enabled by Porphyrin Covalent Organic Frameworks

IF 4.7 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2025-09-23 DOI:10.1021/acsapm.5c02033

Yunran Zhang, , , Hui Dong, , , Zheng Ma, , , Wenjie Yang*, , , Heng Zhang, , , Chunxiang Wei, , , SanE Zhu, , , Hongdian Lu, , , Shouhu Xuan, , and , Wei Yang*,

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Abstract

Biobased waterborne polyurethane (WPU) integrating dual functionalities of antimicrobial and self-healing capabilities has emerged as a burgeoning research frontier. In this study, a porphyrin-based biomass covalent organic framework (Por-COF) with exceptional photothermal conversion efficiency and photodynamic activity was synthesized to improve the comprehensive properties of WPUS that possessed self-healing ability induced by disulfide. The prepared WPUS/Por-COF composites demonstrated excellent photothermal performance, achieving a temperature of 79.3 °C after 10 min of irradiation with a 730 nm laser (2 W/cm²), coupled with inhibition rates approaching 100% against both Staphylococcus aureus and Escherichia coli. Besides, WPUS/Por-COF showed significant improvement in tensile strength, which increased from 3.1 to 12.0 MPa with the incorporation of Por-COF. Additionally, disulfide bonds were introduced into the biobased WPU system, endowing the WPUS/Por-COF with a near-infrared-triggered self-healing property (>68%). The composite films highlight their potential for self-healing and antibacterial coatings in biomedical fields.

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卟啉共价有机框架的近红外自愈和抗菌生物基水性聚氨酯

生物基水性聚氨酯（WPU）集抗菌和自愈双重功能于一体，已成为一个新兴的研究前沿。本研究合成了一种具有优异光热转换效率和光动力活性的卟啉基生物质共价有机骨架（ppo - cof），以改善具有二硫诱导自愈能力的生物质生物质材料的综合性能。制备的WPUS/ pwe - cof复合材料具有优异的光热性能，在730 nm激光（2 W/cm2）照射10 min后，温度达到79.3 °C，对金黄色葡萄球菌和大肠杆菌的抑制率接近100%。此外，WPUS/Por-COF的抗拉强度显著提高，加入Por-COF后，WPUS的抗拉强度由3.1 MPa提高到12.0 MPa。此外，将二硫键引入生物基WPU系统，使WPU / ppo - cof具有近红外触发的自愈特性（68%）。复合膜在生物医学领域具有自愈和抗菌涂层的潜力。

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.