含2,2',4-三(2-氯苯基)-5-(3,4-二甲氧基苯基)-4',5'-二苯基-1,1'-双咪唑光引发体系的光聚合动力学研究

doi:10.7517/j.issn.1674-0475.2013.01.007

影像科学与光化学 ›› 2013, Vol. 31 ›› Issue (1): 53-62.DOI: 10.7517/j.issn.1674-0475.2013.01.007

含2,2',4-三(2-氯苯基)-5-(3,4-二甲氧基苯基)-4',5'-二苯基-1,1'-双咪唑光引发体系的光聚合动力学研究

伍文涛¹, 马贵平², 路键¹, 方大为¹, 钱晓春³, 聂俊², 王克敏¹

1. 常州大学材料科学与工程学院, 江苏常州 213164;
2. 北京化工大学常州先进材料研究院, 江苏常州 213164;
3. 常州强力电子新材料有限公司, 江苏常州 213011

收稿日期:2012-05-11 修回日期:2012-11-03 出版日期:2013-01-15 发布日期:2013-01-15
通讯作者: 王克敏(1979-),男,博士,主要从事光聚合、高分子材料和生物材料的研究,通讯联系人,E-mail:wangkm0601@163.com.
基金资助:
常州科技局国际合作项目(CZ20110007);常州科技局科技支撑计划(工业)项目(CE20110010);常州市微电子工业化学材料研发与制备公共技术平台(CZ2010003).

Photopolymerization Kinetics of 2, 2', 4-(2-Chlorophenyl)-5-(3, 4-Dimethoxyphenyl)-4', 5'-Diphenyl-1, 1'-Two Midazole Containing Initiator System

WU Wen-tao¹, MA Gui-ping², LU Jian¹, FANG Da-wei¹, QIAN Xiao-chun³, NIE Jun², WANG Ke-min¹

1. Schoolof Materials Science and Engineering of Changzhou University, Changzhou 213164, Jiangsu, P.R. China;
2. Changzhou Institute of Advanced Materials, BUCT, Changzhou 213164, Jiangsu, P.R. China;
3. Changzhou Tronly New Electronic Materials Co., Ltd., Changzhou 213011, Jiangsu, P.R. China

Received:2012-05-11 Revised:2012-11-03 Online:2013-01-15 Published:2013-01-15

摘要/Abstract

摘要： 2,2',4-三(2-氯苯基)-5-(3,4-二甲氧基苯基)-4',5'-二苯基-1,1'-二咪唑(CZ-HABI)是一种高效的光引发剂,其结构通过傅里叶红外光谱仪、核磁共振仪、紫外吸收光谱进行表征.复合引发体系(PI)由光引发剂CZ-HABI、增感剂4,4'-双(二乙氨基)苯甲酮(EMK)、供氢体N-苯基甘氨酸(NPG)组成,利用实时红外(RT-IR)对该复合光引发体系进行了光聚合反应动力学研究,结果表明:在没有供氢体条件下,基本上没有引发效果,增加供氢体后,引发效率大幅增加;增加复合光引发体系用量能提高光聚合反应的双键转化率,且最大聚合速率与[PI]^1/2成正比;随着光强的增强,单体的双键转化率与最大反应速率均增大;复合光引发体系引发双丙烯酸酯类单体的最终双键转化率比三丙烯酸酯类单体要高.复合光引发体系的引发效率比ITX/EDAB光引发体系的引发效率高,与1-羟基环己基苯基甲酮(184)、2-羟基-2-甲基-1-苯基-1-丙酮(1173)的引发效果相近.

关键词: 光引发剂, 光聚合, 动力学, 实时红外

Abstract: 2, 2', 4-(2-chlorophenyl)-5-(3, 4-dimethoxyphenyl)-4', 5'-diphenyl-1, 1'-two imidazole (CZ-HABI) is a highly efficient UV initiator. Its characteristics were investigated by FTIR and ¹HNMR and UV absorption spectra. The compound photointiator systems consisted of photoinitiator 2,2',4-(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-two imidazole (CZ-HABI), photosensitizer 4,4'-bis (diethylamino)benzophenone(EMK) and hydrogen donor N-phenyl glycine (NPG). Real time infrared spectroscopy (RT-IR) was used to study the effect of polymerized kinetics of compound photointiator systems. The results indicated that basically no initiation efficient without hydrogen donor, while the effect of initiation efficient boosted greatly in the case of adding hydrogen donor. When concentration of compound photointiator systems increased, the conversion rate of the double bond can been enhanced. Its maximum polymerization rate accorded with the direct proportion relationship of R_p∝(PI)^{1/ 2}. The conversion rate of the double bond of the monomer and maximum reaction rate were enlarged accompanying with the light intensity strengthened. The final conversion rate of the double bond of diacrylate monomer was higher than that of triacrylate monomer. Initiator efficiency of complex photoinitiator system was better than conventional ITX/EDAB initiator system, and similar to initiator efficiency of 184, 1173.

Key words: photoinitiator, polymerized kinetics, photopolymerization, RT-IR

中图分类号:

伍文涛, 马贵平, 路键, 方大为, 钱晓春, 聂俊, 王克敏. 含2,2',4-三(2-氯苯基)-5-(3,4-二甲氧基苯基)-4',5'-二苯基-1,1'-双咪唑光引发体系的光聚合动力学研究[J]. 影像科学与光化学, 2013, 31(1): 53-62.

WU Wen-tao, MA Gui-ping, LU Jian, FANG Da-wei, QIAN Xiao-chun, NIE Jun, WANG Ke-min. Photopolymerization Kinetics of 2, 2', 4-(2-Chlorophenyl)-5-(3, 4-Dimethoxyphenyl)-4', 5'-Diphenyl-1, 1'-Two Midazole Containing Initiator System[J]. Imaging Science and Photochemistry, 2013, 31(1): 53-62.

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含2,2',4-三(2-氯苯基)-5-(3,4-二甲氧基苯基)-4',5'-二苯基-1,1'-双咪唑光引发体系的光聚合动力学研究

Photopolymerization Kinetics of 2, 2', 4-(2-Chlorophenyl)-5-(3, 4-Dimethoxyphenyl)-4', 5'-Diphenyl-1, 1'-Two Midazole Containing Initiator System

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