Fujisawa S, Kadoma Y
Faculty of Dentistry, Tokyo Medical and Dental University, Japan.
Dent Mater. 1992 Sep;8(5):324-6. doi: 10.1016/0109-5641(92)90108-o.
The inhibitory effects of six phenolic compounds and two analogues on the polymerization of methyl methacrylate (MMA) by azobisisobutyronitrile (AIBM) were examined. Differential scanning calorimetry was used to determine the induction period (IP) and initial rate of polymerization (IRP). The IP values (minutes) decreased in the order: eugenol > thymol > hydroquinone > cresol > guaiacol > phenol >>> safrole > methol. The IRP values of all compounds tested ranged from 0.8 to 1.2 percent per minute, except for hydroquinone (0.2 percent per minute). Phenolic compounds inhibited the polymerization of MMA by scavenging radicals, and eugenol was the most potent inhibitor.
研究了六种酚类化合物及其两种类似物对偶氮二异丁腈（AIBM）引发的甲基丙烯酸甲酯（MMA）聚合反应的抑制作用。采用差示扫描量热法测定诱导期（IP）和聚合初始速率（IRP）。IP值（分钟）按以下顺序降低：丁香酚＞百里酚＞对苯二酚＞甲酚＞愈创木酚＞苯酚 >>> 黄樟素＞薄荷醇。除对苯二酚（每分钟0.2%）外，所有测试化合物的IRP值范围为每分钟0.8%至1.2%。酚类化合物通过清除自由基抑制MMA的聚合反应，其中丁香酚是最有效的抑制剂。
