两种二芳基碘鎓盐对光固化复合树脂性能的影响  

Effects of Diaryliodonium on the Properties of Light-curing Composite Resin

作　　者：林艺娜[1] 王可[1] 贾芳[1] 刘小青[1] 

机构地区：[1]四川大学华西口腔医学院口腔材料学教研室,成都610041

出　　处：《四川大学学报（医学版）》2009年第4期700-703,共4页Journal of Sichuan University(Medical Sciences)

基　　金：国家自然科学基金(批准号50673065)资助

摘　　要：目的探讨两种二芳基碘鎓盐对光固化复合树脂聚合转化率、压缩强度和固化深度的影响。方法以双酚-S-双(3-甲基丙烯酰氧基-2-羟丙基)醚(BisS-GMA)作为树脂基质,双甲基丙烯酸二缩三乙二醇酯(TEGDMA)作为稀释剂,SiO2作为无机填料,樟脑醌(CQ)和N,N-二甲胺基甲基丙烯酸乙酯(DMAEMA)分别与不同的二芳基碘鎓盐〔二苯基碘鎓六氟磷酸盐或双(对甲苯基)碘鎓六氟磷酸盐〕作为引发体系,分别测定并比较两种不同的二芳基碘鎓盐所引发聚合光固化复合树脂的聚合转化率、压缩强度和固化深度。结果不含二芳基碘鎓盐的光固化复合树脂、含二苯基碘鎓六氟磷酸盐的光固化复合树脂和含双(对甲苯基)碘鎓六氟磷酸盐的光固化复合树脂的聚合转化率、压缩强度和固化深度分别依次提高。结论二芳基碘鎓盐能够提高光固化复合树脂的聚合转化率等性能,且用双(对甲苯基)碘鎓六氟磷酸盐比用二苯基碘鎓六氟磷酸盐更能够进一步提高光引发体系的光敏活性和溶解度,可获得更高的聚合转化率、压缩强度和固化深度。Objective To test the effects of two kinds of diaryliodonium on the degree of conversion （1312） ,the compressive strength （CS） and the cure depth （CD） of the light-curing composite resin. Methods BisS-GMA was used as reisin matrix, with TEGDMA as diluent and SiO2 as inorganic filler. CQ, DMAEMA and two different kinds of diaryliodonium （diphenyliodonium hexafluorophosphate and bis （p-tolyl） iodonium hexafluorophosphate） were used as photoinitiator, respectively. The DC, CS, CD were measured and compared by the FTIR spectroscopy, and the tensile strength of machine et al. Results Diaryliodonium led to greater DC, CS, and CD of the light-curing composite resin. The DC, CS, and CD of the light-curing composite resin increased more with bis （ p-tolyl ） iodonium hexafluorophosphate than with diphenyliodonium hexafluorophosphate, Conclusion Diaryliodonium can improve the DC, CS, and CD properties of light-curing composite resin. Bis（p-tolyl）iodonium hexafluorophosphate has better performance than diphenyliodonium hexafluorophosphate in improving photosensibility and solubility of the photoinitiator system.

关 键 词：二芳基碘鎓盐 光固化复合树脂 聚合转化率 

分 类 号：R783.1[医药卫生—口腔医学]