水溶性光引发剂二苯甲酮氯化铵引发三丙二醇双丙烯酸酯光聚合动力学的研究  

Study on photopolymerization kinetics of tripropylene glycol diacrylate initiated by hidrosoluble photoinitiator benzophenone ammonium chloride

作　　者：于佳[1] 黄跃东[2] 高彦静[1] 孙芳[1] 

机构地区：[1]北京化工大学理学院,北京100029 [2]吉林工业职业技术学院,吉林吉林132013

出　　处：《粘接》2014年第7期46-49,共4页Adhesion

摘　　要：以4-羟基二苯甲酮、环氧氯丙烷和三甲胺盐酸盐为原料,通过2步反应,合成了一种水溶性光引发剂——氯化[2-羟基-3-(4-苯甲酰基苯氧基)-N,N,N-三甲基-1-丙铵](HBPCl)。其结构通过核磁共振氢谱(1H-NMR)和傅里叶红外光谱(FT-IR)得到了证实。研究了水溶性光引发剂HBPCl的紫外吸收和降解特性,并通过实时红外(RT-IR)研究了氢助剂含量、HBPCl浓度和光强对HBPCl引发的TPGDA光聚合动力学的影响。结果表明,HBPCl在285 nm处有最大紫外吸收峰,能够有效地引发单体聚合;另外,随着氢助剂含量、引发剂浓度和光强的增大,光聚合速率和单体最终转化率随之增大,诱导期被缩短。A hidrosoluble photoinitiator, 2-hydroxy-3-（4-benzoylphenoxy）-N,N,N-trimethyl-l-propaminium chloride（HBPC1）, was synthesized by a two-steps reaction based on 4-hydroxy-benzophenone, epichlorohydrin and trimethylammonium chloride. Its structure was confirmed by proton nuclear magnetic resonance （^1H-NMR） and Fourier transform infrared spectroscopy （FT-IR）. The ultraviolet absorption and degradation properties of the hidrosoluble photoinitiator HBPCl were studied by UV absorption spectra. The effect of concentrations of hydrogen coinitiator and HBPCl as well as the light intensity on the kinetics ofphotopolymerization of TPGDA initiated by HBPCl was investigated by real-time infrared spectroscopy （RT-IR）. The results showed that HBPCl had a maximum UV absorption peak at 285nm similar to that of HBP, and can effectively initiate ptotopolymerization. Furthermore, with the increasing of the concentrations of hydrogen coinitiator and photoinitiator and the light intensity, the photopoly-merization rate and the final double bond conversion of monomer were increased, and the induction period was shortened.

关 键 词：水溶性光引发剂 光聚合 二苯甲酮 光聚合动力学 

分 类 号：TQ638[化学工程—精细化工] TQ323