In this work, a magnetic inhibitor (MI) was first prepared by using p‐hydroxybenzaldehyde anchored onto magnetic chitosan (MCS). Its inhibition effect to the free‐radical polymerization was studied. The MI with a size of less than 1 μM was characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and thermo gravimetric analysis (TGA). For potential application, MIs have been used to inhibit the thermal polymerization of styrene, and they can be removed from the monomers conveniently by magnetic separation. The corresponding inhibitory effect has been investigated through the measurement of the induction period with the dilatometer method. The results show that the inhibitory effect of MI was eight times higher than that of the nonadditive inhibitor for the equivalent volume of styrene. J. VINYL ADDIT. TECHNOL., 26:304–308, 2020. © 2019 Society of Plastics Engineers

中文翻译：

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Fe3O4 /壳聚糖负载的抑制剂的合成与抑制性能

在这项工作中，首先通过使用p制备了磁性抑制剂（MI）-羟基苯甲醛固定在磁性壳聚糖（MCS）上。研究了其对自由基聚合的抑制作用。通过扫描电子显微镜（SEM），傅立叶变换红外光谱（FTIR）和热重分析（TGA）表征尺寸小于1μM的MI。对于潜在的应用，MI已被用于抑制苯乙烯的热聚合，并且可以通过磁分离方便地将它们从单体中除去。通过用膨胀计法测量诱导期来研究相应的抑制作用。结果表明，对于苯乙烯当量，MI的抑制作用比非添加剂的抑制作用高八倍。J.乙烯基添加物。TECHNOL。，26：304–308，2020.©2019塑料工程师协会