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合成了六种具有不同阳离子结构和不同配阴离子的铁芳烃络合物光引发剂.测定了氧化环已烯聚合中的活性中心浓度,发现活性中心浓度随聚合时间线性增加,而随聚合温度增加有一极大值.引发剂芳环取代基给电子性愈强,引发活性愈大.阳离子结构相同的引发剂,以六氟锑酸根为配阴离子的引发剂活性比六氟磷酸根为配阴离子的引发剂活性大.测定了环戊二烯基异丙苯铁六氟磷酸盐的紫外光谱.
Six iron-aromatics complex photoinitiators with different cationic structures and different anions were synthesized.The concentration of active sites in the polymerization of cyclohexene oxide was measured and the concentration of active sites increased linearly with the polymerization time and increased with the polymerization temperature There is a maximum value.Aromatic ring substituents to give the stronger electron donors, the more active.Cationic structure of the same initiator, hexafluoroantimonate with an anionic initiator activity than hexafluorophosphate with anions The activity of the initiator is high. The UV spectrum of cyclopentadienyl iron hexafluorophosphate was determined.