Abstract In this study, degradable cross-linked carbon nanotubes (CNTs) incorporated polymer was prepared by a facile route using “click” chemistry. Firstly, copolymers of poly(styrene-alt-maleic anhydride) (PSM) were functionalized with furfuryl amine and propargyl amine in a simple one-pot reaction to produce furan-alkyne bifunctional PSM copolymers (PSFA). Secondly, the PSFA chains were covalently anchored to the surface of CNTs by the Diels-Alder “click”-type reaction in water under ultrasound assistance affording PSFA/CNTs. Eventually, azide–alkyne cycloaddition click reaction was taken place between the PSFA/CNTs and bis-(azidoethyl)disulfide as a crosslinking agent in the presence of Cu(0)/PMDTA catalyst system. The successful functionalization of CNTs was confirmed by a series of characterization techniques including Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), Raman spectroscopy, and transmission electron microscopy (TEM). The degradable cross-linked PSFA/CNTs could convert hydrophobic to hydrophilic character under reducing environment.

中文翻译：

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通过“点击”化学制备可降解交联碳纳米管掺入聚合物

摘要 在这项研究中，可降解的交联碳纳米管 (CNT) 掺入聚合物是通过使用“点击”化学的简便途径制备的。首先，聚（苯乙烯-alt-马来酸酐）（PSM）的共聚物在简单的一锅反应中用糠胺和炔丙胺官能化以制备呋喃-炔双官能PSM共聚物（PSFA）。其次，在超声辅助下，PSFA 链在水中通过 Diels-Alder “点击”型反应共价锚定到 CNT 表面，提供 PSFA/CNT。最终，在 Cu(0)/PMDTA 催化剂体系存在下，PSFA/CNTs 和双（叠氮乙基）二硫化物作为交联剂发生叠氮化物-炔烃环加成点击反应。一系列表征技术证实了碳纳米管的成功功能化，包括傅里叶变换红外光谱 (FTIR)、热重分析 (TGA)、拉曼光谱和透射电子显微镜 (TEM)。可降解的交联 PSFA/CNTs 可以在还原环境下将疏水性转化为亲水性。