Frontal polymerization (FP) involves the rapid conversion of monomer into polymer within a moving reaction zone. The front is typically initiated with a thermal stimulus, but noncontact, remote initiation with light is attractive for applications where direct heating is not feasible. Here, we demonstrate efficient conversion of light into localized heat using carbon nanoparticles to accomplish photothermal initiation of FP. The addition of 1 wt % carbon black to dicyclopentadiene monomer results in a 10-fold increase in temperature rise from photothermal heating and a 30-fold decrease in energy input required for photothermal FP initiation. The energy input is further reduced by using carbon nanotubes and nanofibers. This photothermal initiation approach is expected to be applicable to other FP systems.

中文翻译：

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使用碳纳米粒子的正面聚合的光热引发

正面聚合（FP）涉及在移动的反应区内将单体快速转化为聚合物。正面通常通过热刺激来启动，但是非接触式，光的远程启动对于无法直接加热的应用很有吸引力。在这里，我们展示了使用碳纳米颗粒完成FP的光热引发，将光有效地转换为局部热量的过程。向双环戊二烯单体中添加1 wt％的炭黑会导致光热加热引起的温度升高10倍，光热FP引发所需的能量输入降低30倍。通过使用碳纳米管和纳米纤维进一步减少了能量输入。这种光热引发方法有望应用于其他FP系统。