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首页> 外文期刊>Polymers for advanced technologies >Photoinitiating behavior of benzophenone derivatives covalently bonded tertiary amine group for UV-curing acrylate systems
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Photoinitiating behavior of benzophenone derivatives covalently bonded tertiary amine group for UV-curing acrylate systems

机译：二苯甲酮衍生物共价键叔胺基团对光固化丙烯酸酯体系的光引发行为

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摘要

A series of benzophenone derivatives (N-BPs) containing tertiary amine group used as hydrogen abstraction-type (type II) photoinitiators were synthesized through the addition reaction of secondary amines with 4-(2,3-epoxypropyloxy) benzophenone. The chemical structures were characterized with 1H NMR, FTIR spectroscopy, and UV spectrum measurements. The N-BPs showed the higher absorption in 300-400nm than benzophenone (BP). The photoinitiating activity was examined based on the photopolymerization of 1,6-hexanediol diacrylate using photo-DSC method. The results showed that the photoinitiating efficiency was negatively affected by the molecular structure of alkyl group connected to the tertiary amine with the order of isopropyl (N-BPI)
机译：通过仲胺与4-（2,3-环氧丙氧基）二苯甲酮的加成反应，合成了一系列含叔胺基的二苯甲酮衍生物（N-BPs），用作氢提取型（II型）光引发剂。化学结构通过1 H NMR，FTIR光谱和UV光谱测量进行表征。 N-BPs在300-400nm中显示出比二苯甲酮（BP）高的吸收率。使用光DSC方法基于1，6-己二醇二丙烯酸酯的光聚合来检查光引发活性。结果表明，光引发效率受到与叔胺连接的烷基分子结构的负面影响，其顺序为异丙基（N-BPI）<甲基（N-BPM）<乙基（N-BPE）<丙基（N -BPP）。此外，在N-BP中，二乙醇胺改性的二苯甲酮衍生物（N-BPOH）对自由基聚合体系的光引发效率最高。

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