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Citation: XU Zeqing, GAO Baojiao, HOU Xiaodong. Synthesis of Benzoic Acid Derivative-Bonded Polystyrene Ligand and Photoluminescence Properties of Its Complex with Eu(Ⅲ) Ion[J]. Chinese Journal of Applied Chemistry, ;2014, 31(2): 133-139. doi: 10.3724/SP.J.1095.2014.30186 shu

Synthesis of Benzoic Acid Derivative-Bonded Polystyrene Ligand and Photoluminescence Properties of Its Complex with Eu(Ⅲ) Ion

1.
Department of Chemical Engineering, North University of China, Taiyuan 030051, China

Corresponding author: GAO Baojiao,
Received Date: 16 April 2013
Available Online: 30 May 2013
Fund Project: 山西省自然科学基金资助项目(201002100843) (201002100843)

The nucleophilic substitution reaction between the chloromethyl group of chloromethylated polystyrene(CMPS) and phenolic hydroxyl group of 3-nitro-4-hydroxy benzoic acid(NHBA) was conducted,and the nitro-benzoic acid(NBA) ligand was bonded on the side chains of polystyrene(PS) to yield nitro benzoic acid functionalization polystyrene PS-NBA.In this work,the nucleophilic substitution reaction between CMPS and NHBA was systematically investigated to optimize the reaction conditions.The coordination reaction between PS-NBA and Eu³⁺ ion was carried out to give polymer-rare earth complex,PS-(NBA)₃-Eu(Ⅲ).The chemical structure of PS-NBA was characterized by FTIR and ¹H NMR spectra and the florescence emission of PS-(NBA)₃-Eu(Ⅲ) was preliminarily examined.The results show that the nitro substitute group in benzene ring can reduce the rate of the substitution reaction.The stronger polarity solvents and higher reaction temperature(70℃) favor the substitution reaction.The ligand NBA on the side chain of the functionalized polymer PS-NBA can strongly sensitize the fluorescence-emission of Eu³⁺ ion,and its sensibilization is much stronger than that of benzoic acid(BA) ligand.The polymer-rare earth complex PS-(NBA)₃-Eu(Ⅲ) possesses much stronger fluorescence emission intensity than PS-(BA)₃-Eu(Ⅲ).
- polystyrene,
- nitro-benzoic acid ligand,
- nucleophilic substitution,
- polymer-rare earth complex,
- fluorescence emission,
- sensibilization
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