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二芳酮-可聚合胺紫外光引发1,6-己二醇二丙烯酸酯聚合的动力学研究
引用本文:孙梦洲 何勇 吴刚强 聂俊. 二芳酮-可聚合胺紫外光引发1,6-己二醇二丙烯酸酯聚合的动力学研究[J]. 感光科学与光化学, 2007, 25(1): 41-49
作者姓名:孙梦洲 何勇 吴刚强 聂俊
作者单位:[1]北京化工大学材料科学与工程学院,北京100029 [2]武汉大学化学与分子科学学院,湖北武汉430072
摘    要:用Photo-DSC(光差热扫描)研究了一种可聚合胺助引发荆乙二醇-3-吗啡啉丙酸酯甲基丙烯酸酯(EGMPM)分别与二苯甲酮(BP)、4-(4-甲苯硫基苯基)苯基甲酮(BMS)、4-氯二苯甲酮(CBP)、4-氯甲基二苯甲酮(CMBP)、4-羟甲基二苯甲酮(HMBP)等二芳酮组成的光引发体系引发以1,6-己二醇二丙烯酸酯(HDDA)为单体的紫外光聚合动力学.考察二芳酮质量分数、聚合温度、光照强度对其光聚合动力学影响,并评价其引发效果;同时计算出了EGMPM/BP引发HDDA聚合体系的活化能.结果表明,二芳酮的质量分数增加时,反应达到最大反应速率的时间减少,单体的转化率也相应增加,单体聚合速率相应增大;相同质量分数(0.1%)的不同二芳酮,BMS体系达到最大反应速率的时间最短,单体转化率也最高;随着温度和光强的增加,单体最终转化率、最大反应速率增大,达到最大反应速率所需的时间减少.

关 键 词:可聚合胺 二芳酮 紫外光聚合动力学 光差热扫描
文章编号:1000-3231(2007)01-0041-09
收稿时间:2006-08-11
修稿时间:2006-10-30

Photopolymerization of 1, 6-Hexanediol Diacrylate Initiated by Diarylketone/Polymerizable Amine
SUN Meng-zhou, HE Yong, WU Gang-qiang, NIE Jun. Photopolymerization of 1, 6-Hexanediol Diacrylate Initiated by Diarylketone/Polymerizable Amine[J]. Photographic Science and Photochemistry, 2007, 25(1): 41-49
Authors:SUN Meng-zhou   HE Yong   WU Gang-qiang   NIE Jun
Affiliation:1. College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing , 100029, P. R. China ; 2. Key Laboratory of Biomedical Polymers of Ministry of Education Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
Abstract:The polymerizable amine ethylene glycol 3-morpholine-propionate methacrylate was used as coinitiatos for benzophenone(BP),4-(4-methylbenzisulfide-phenyl)phenyl ketone(BMS),4-chloro-benzophenone(CBP),4-chloromethyl benzophenone(CMBP),4-hydroxymethyl benzophenone(HMBP) photoinitiator system.The photopolymerization kinetics of 1,6-Hexanediol Diacrylate(HDDA) was investigated with Photo-DSC.The result indicated that the structure of diaryl ketone and their mass ratio played an important role on kinetics of photopolymerization rate and monomer conversion,and increasing light intensity and temperature could lead to the increase of photopolymerization rate and the final conversion.The activation energy(E_a) of photopolymerization of HDDA initiated by EGMPM/BP had been calculated.
Keywords:polymerizable amine   diarylketone   photopolymerization kinetics   Photo-DSC
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