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SONG Guoqiang1; WANG Yanchen1; SHEN Li1; WANG Ruirui1; FENG Xiaoqing1; 2

doi:10.11889/j.1000-3436.2012.rrj.30.120404

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- Journal of Radiation Research and Radiation Processing Vol. 30, Issue 4, Pages: 209-214(2012)
- 作者机构：
  
  1. 1（常州大学制药与生命科学学院）,常州,213164
  2. 2（常州市药品制造与质量控制工程重点实验室）,常州,213164
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- DOI：10.11889/j.1000-3436.2012.rrj.30.120404
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SONG Guoqiang1, WANG Yanchen1, SHEN Li1, et al. [J]. Journal of Radiation Research and Radiation Processing 30(4):209-214(2012)
DOI：

SONG Guoqiang1, WANG Yanchen1, SHEN Li1, et al. [J]. Journal of Radiation Research and Radiation Processing 30(4):209-214(2012) DOI： 10.11889/j.1000-3436.2012.rrj.30.120404.

摘要

以4-甲基二苯甲酮和2-甲基丙烯酸为原料合成了可聚合光引发剂4-（2-甲基丙烯酰氧基）甲基二苯甲酮（4-MAMBP），利用核磁共振仪和紫外吸收光谱进行了表征；选取三羟甲基丙烷三丙烯酸酯（TMPTA）曝光聚合，利用铅笔硬度法测试了固化膜的硬度；运用实时红外（RT-IR）进行光聚合反应动力学研究，考察了单体、光强及引发剂浓度对聚合引发速率及单体转化率的影响，并对固化膜中引发剂残留量进行测定。结果表明：随着光强的增大，单体的双键转化率和聚合速率都增加；二官能度单体的双键转化率和聚合速率高于多官能度单体。4-MA-MBP的质量分数从0.2%增加到1.4%时，单体的双键转化率和聚合速率都明显增加，诱导期缩短，继续增加到1.8%时，双键转化率和聚合速率反而下降；由于可交联在固化膜中，4-MAMBP在固化膜中的残留远低于二苯甲酮。

Abstract

4-(2-methacryloxy)methylbenzophenone(4-MAMBP), a highly efficient polymerizable photo-initiator, was synthesized with 4-methylbenzophenone and 2-methylpropenoic acid, which was characterized by 1HNMR and UV absorption spectra. The hardness of TMPTA cured film was measured by pencil hardness test. Real time infrared spectroscopy (RT-IR) was applied to investigate the effects of different monomer system, various light intensity and concentration of photo-initiator on the polymerization kinetics. Finally, the photo-initiator residual of the cured film was determined. The results indicate that with the increment of light intensity, the rate of polymerization (Rp) and final double bond conversion will increase. The double bond conversion and Rp of difunctional monomer is higher and faster than that of multifunctional monomer. While the concentration of 4-MAMBP increases from 0.2% to 1.4%, the monomer’s double conversion and polymerization rate will obviously increase and make the induction period shortened. However, with increment of 4-MAMBP concentration to 1.8%, double conversion and polymerization will decrease. The photo-initiator residual of 4-(2-methacryloxy)-methylbenzophenone is much lower than that of BP for its crosslinking in the cured film.Cited

关键词

4-（2-甲基丙烯酰氧基）甲基二苯甲酮可聚合光引发剂光聚合反应动力学实时红外

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(China Institute for Radiation Protection,,)

1(School of Radiation Medicine and Protection, Medical College of Soochow University, Jiangsu Province Key Laboratory of Radiation Medicine and Protection,,)

2(Sanitation and Environment Technology Institute, Soochow University,,)

1(Institute of Material Science and Engineering of ChangZhou University,,)

3(ChangZhou Tronly New Electronic Materials Co. Ltd.,,)

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DOI：10.11889/j.1000-3436.2012.rrj.30.120404

摘要

Abstract

关键词

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