Synthesis and photolytic properties of 1,5-di-N,N¡ä-dialkylaminoanthraquinones containing acryloyl groups

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• 作者：Kaihua Shen^a ; ^{shen_kh@yahoo.com.cn} ; Ying Li^b ; Guojie Liu^a ; Yang Li^a ; Xiaoan Zhang^b
• 关键词：Photo-initiator ; 1 ; 5-N ; N&prime ; -dialkylaminoanthraquinones ; RTIR ; Photopolymerization
• 刊名：Progress in Organic Coatings
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：76
• 期：1
• 页码：125-130
• 全文大小：977 K

文摘

Several l,5-di-N,N¡ä-dialkyaminoanthraquinones containing acryloyl groups were synthesized and characterized by Fourier transform infrared (FTIR) and ¹H NMR spectroscopy. The photophysical and photoinduction properties of these anthraquinone derivatives were examined in solution, in combination with free radical producing agents such as hexa-aryl-bis-imidazoles (HABI). When UV-vis absorption and fluorescence spectroscopy were employed to investigate the photophysical process, results showed that the photobleaching rate of N-alkylaminoanthraquinones containing an acrylate group and HABI was much faster than the acrylate group-free N-alkylaminoanthraquinone/HABI combination. N-alkylaminoanthraquinone induced polymerization of 2-phenoxyethyl acrylate (POEA)/N-vinyl carbazole (NVC)/cellulose acetate butyrate (CAB) mixtures was studied using real-time infrared spectroscopy (RTIR). It was found that the rate of polymerization was faster if the acryloyl groups were connected to the N,N¡ä-dialkylaminoanthraquinone structure and that 1,5-di-N,N¡ä-dialkylaminoanthraquinone containing acryloyl groups was more sensitive to visible light system.