双官能度单组分光引发剂的制备及其光引发活性研究  

Synthesis of Bifunctional One-component Photoinitiator and Its Initiatiating Activity

作　　者：简凯 李东兵[2] 周金娣 杨金梁[2] 聂俊[4] JIAN Kai LI Dongbing ZHOU Jindi YANG Jinliang NIE Jun(School of Materials Science and Engineering, Beijing University of Chemical Technology, Beij ing 100029, P. R. China Changzhou Institute of Advanced Materials Research, Bei j ing University of Chemical Technology, Changzhou 213000, J iangsu, P. R. China School of Science, Beijing University of Chemical Technology, Beijing 100029, P.R. China Analytical Laboratory of Haimen City Water Company, Nantong 226100, Jiangsu, P.R. China)

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]北京化工大学常州先进材料研究院,江苏常州213000 [3]海门自来水公司分析实验室,江苏南通226100 [4]北京化工大学理学院,北京100029

出　　处：《影像科学与光化学》2016年第6期505-512,共8页Imaging Science and Photochemistry

摘　　要：本文利用4-甲基二苯甲酮、哌嗪等原料合成了一种双官能度的单组分光引发剂(MBPPA),其分子结构中具有两个二苯甲酮基团。通过紫外光谱研究了光引发剂的紫外吸收和光降解性能,并利用实时红外测试了光引发剂的光引发活性以及不同单体对光聚合动力学的影响。结果表明,在光照10min后,MBPPA在257.2nm处的吸光度降低了18.76%,光降解速度明显高于MBP。当光强为50mW·cm-2时,0.2%(摩尔分数)MBPPA单独引发乙氧基乙氧基丙烯酸乙酯(EOEOEA)聚合的转化率可达90%。在同等条件下,多官能度丙烯酸酯单体的聚合速率要明显高于单官能度丙烯酸酯单体,但其转化率有所降低。MBPPA, a one-component photoinitiator with two benzophenone groups, was synthesized. The properties of UV absorption and photodegradation were studied by UV absorption spectra. The initiation activity of photoinitiator and the effects of monomer on the polymerization kinetics were investigated by real-time infrared spectroscopy. The results show that the intensity of the absorption peak at 257. 2 nm of MBPPA decreased 18. 76% after irradiating for 10 min, which is better than MBP. ethoxyethoxy） ethylacrylate initiated by 02%. The more functionality of monomer has, conversion are. 2 % （mole fraction） MBPPA alone can the higher of polymerization rate and The conversion rate of 2-（2- reach 900/00 at 50 mW ·cm-2. the lower of the double bond

关 键 词：光聚合 光引发剂 二苯甲酮 单组分光引发剂 

分 类 号：TQ314.241[化学工程—高聚物工业]