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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 6    December 2003

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Synthesis and fluorescence properties of terbium-calcium-PMDMBA
WANG Zheng-xiang(王正祥)12, CHEN Hong(陈 洪)2, SHU Wan-gen(舒万艮)1
ZHOU Zhong-cheng(周忠诚)1, ZHAO Dong-bai(赵东柏)2

1. Key Laboratory of New Materials and Technology of China National Packaging Corporation, Zhuzhou Institute of Technology, Zhuzhou 412008, China ;
2. School of Chemistry and Chemical Engineering, 
Central South University, Changsha 410083, China

Abstract:A novel rare earth complex monomer Tb-Ca-PMDMBA(PMDMBA denotes pyromellitic dianhydride-modified Bisphenol A epoxy acrylate resin) was synthesized for the first time as following procedure. Firstly, Bisphenol A epoxy acrylate resin and Bisphenol A epoxy acrylate resin modified with pyromellitic dianhydride were synthesized from Bisphenol A epoxy resin, acrylic acid and pyromellitic dianhydride through esterification respectively. Their composition is ascertained by the analysis of acidic value and FTIR spectrum. Secondly, the complex monomer Tb-Ca-PMDMBA was prepared by coordinating Tb3+, Ca2+ with carboxyl groups, and then its fluorescence properties were investigated. The results show that Tb-Ca-PMDMBA complex can emit intense characteristic emission spectrum of Tb3+ ion under UV excitation. The fluorescence intensity depends on the content of Tb3+ and reaches maximum when the mole ratio of Tb to Ca is 2∶9.

 

Key words: terbium fluorescence; complex monomer; fluorescence enhancement; modification

ISSN 1672-7029
CN 43-1423/U

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