含氟光引发剂的合成及其性能研究  

Preparation and Performance of a Fluorinated Photoinitiator

作　　者：余云英[1] 陈永惠 张亚兰[1] 方大为[3] 聂俊[3] 马贵平[3] 

机构地区：[1]常州大学,江苏常州213164 [2]河南省医药学校,河南开封475000 [3]北京化工大学常州先进材料研究院,江苏常州213164

出　　处：《影像科学与光化学》2013年第6期448-455,共8页Imaging Science and Photochemistry

基　　金：江苏省自然科学基金(BK20131145)

摘　　要：以2-羟基-4′-(2-羟乙氧基)-2-甲基苯丙酮(Irgacure 2959)和全氟辛酰氯(PFOC)为原料合成了光引发剂全氟辛酸-2-[4-(2-羟基-2-甲基丙酰)苯氧基]乙酯(2959-F),利用红外光谱(FT-IR)和核磁共振(19F NMR)对2959-F进行了结构表征;通过紫外吸收光谱测定了2959-F的紫外吸收谱;通过实时红外光谱(RT-IR)对合成的含氟光引发剂进行了光聚合反应动力学研究,考察了光强和引发剂浓度对单体的双键转化率和聚合速率影响,并研究了光引发剂2959-F的抗氧阻聚性能.结果表明:随着光强的增大,单体的双键转化率和聚合速率增加;在一定范围内,引发剂的浓度越高,双键转化率越高,聚合速率越快.2959-F具有较高的双键转化率和较快的聚合速率,并且具有较好的抗氧阻聚性.Huorinated photoinitiator pentadecafluoro-propionic acid-2-[4-（2-hydroxy-2-methyl-prop- ionyl）-phenoxy]-ethyl ester （2959-F） was synthesized with 2-hydroxy-4-（ 2-hydroxyethoxy）-2- methylpro-piophenone （Irgacure 2959） and pentadecafluorooctanoyl chloride （PF（X;）. Product synthesized was characterized by Fourier Transform infrared spectrum （FT-IR） and Nuclear Magnetic Resonance 19F spectrum （19F NMR）. The UV absorption of 2959-F was evaluated by the UV absorption spectra. The polymerization kinetics of fluorinated photoinitiator 2959-F was investigated by Real time infrared spectroscopy （RT-IR）, and studied the effects of various light intensity and concentration of photo-initiator on polymerization rate and the double bond conversion. The results indicated that the rate of polymerization and final double bond conversion would increase with increase of light intensity and concentration of photo-initiator. The results showed that fluorinated photo-initiator 2959-F had high conversion rate of double bond and polymerization rate, and could overcome oxygen inhibition.

关 键 词：光聚合 含氟光引发剂 动力学 实时红外 氧阻聚 

分 类 号：O644.1[理学—物理化学]