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引发剂2-(1,3-苯并二氧戊环-5-基)-4,6-双(三氯甲基)-1,3,5-三嗪(MBT)由3,4-(亚甲二氧基)苯甲腈和三氯乙腈为原料合成。利用红外光谱、紫外光谱、核磁共振等手段对MBT的结构进行表征。利用实时红外光谱法研究它的光聚合动力学性能,结果表明,随着光强的增大,单体的最终双键转化率和聚合速率都增加;随着单体所含官能团数增加,双键转化率反而降低;随着引发剂浓度从0.01%增加到0.05%时,单体的双键转化率和聚合速率都明显增加,继续增加引发剂浓度到0.5%,转化率和聚合速率都逐渐下降。
The initiator 2- (1,3-benzodioxol-5-yl) -4,6-bis (trichloromethyl) -1,3,5-triazine (MBT) Methylenedioxy) benzonitrile and trichloroacetonitrile as starting materials. The structure of MBT was characterized by means of infrared spectroscopy, ultraviolet spectrum and nuclear magnetic resonance. The photopolymerization kinetics was studied by real-time infrared spectroscopy. The results showed that the final double bond conversion and polymerization rate increased with the increase of light intensity. With the increase of the number of functional groups The conversion rate of the bond decreases; as the initiator concentration increases from 0.01% to 0.05%, the double bond conversion rate and the polymerization rate of the monomer increase significantly. When the concentration of the initiator is increased to 0.5%, the conversion rate and the polymerization rate gradually increase decline.