In this paper, we reveal a synthetic polymer heatproofing mechanism of a lignin derivative extracted by simultaneous enzymatic saccharification and comminution (hereafter referred to as “SESC lignin”). First, the prevention of back-biting on the thermal degradation of poly(ethylene carbonate) by SESC lignin is experimentally verified via chromatograph/spectroscopic approaches. Second, we explore the applicable scope (e.g., the limiting temperature) of SESC lignin as a heatproof filler by comparing the heatproof properties of a conventional heat stabilizer and SESC lignin. Finally, we confirm that the combination of “preferential pyrolysis” and “radical scavenging” of SESC lignin induces its synthetic polymer heatproof properties, which can be determined using thermochemical/kinetical approaches.

在本文中，我们揭示了通过同时酶促糖化和粉碎提取的木质素衍生物（以下称为“ SESC木质素”）的合成聚合物耐热机理。首先，通过色谱/光谱方法通过实验验证了SESC木质素防止聚碳酸亚乙酯热降解的反咬合作用。其次，我们通过比较常规热稳定剂和SESC木质素的耐热性能，探索了SESC木质素作为耐热填料的适用范围（例如，极限温度）。最后，我们确认SESC木质素的“优先热解”和“自由基清除”相结合会诱导其合成聚合物的耐热性能，这可以使用热化学/运动学方法确定。