高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 249.

• Chromatography and Separation Sciences • 上一篇    下一篇

Separation and Determination of bis (2,2,6,6- Tetramethyl-4-Piperidyl) Maleate and Its Reaction Solution with Ion Suppression Chromatography

NIU Jun-Feng, WANG Fu-An, CHEN Hai-Song, SONG Jian-Chi, ZHAI Sheng-Li   

  1. College of Chemical Engineering, Zhengzhou University of Technology, Zhengzhou, 450002, P. R. China
  • 出版日期:1999-12-31 发布日期:1999-12-31

Separation and Determination of bis (2,2,6,6- Tetramethyl-4-Piperidyl) Maleate and Its Reaction Solution with Ion Suppression Chromatography

NIU Jun-Feng, WANG Fu-An, CHEN Hai-Song, SONG Jian-Chi, ZHAI Sheng-Li   

  1. College of Chemical Engineering, Zhengzhou University of Technology, Zhengzhou, 450002, P. R. China
  • Online:1999-12-31 Published:1999-12-31

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摘要：

Bis (2,2,6,6-tetramethyl-4-piperidyl) maleate (BPM) is a kind of intermediate for newer hindered amine light stabilizer, being of high value for study and application. However, the report about the analysis of BPM and its reaction solution has not been seen till now. In the synthesis reaction solution of BPM, besides great quantity of solvent,xylene mixture, ethyl benzene, there are a little unreacted dimethyl maleate (DMM), 2,2,6,6,-tetramethyl-4-piperdinol (TMP) and BPM. BPM is weekly alkaline polyfunctional organic compound, dissociating easily in aqueous solution. When analyzing it with common liquid chromatography,some problems such as trailing peaks, asymmetric peaks, low resolution, unstable retention time will appear. In this paper,the ion suppression chromatography (ISC) technique was successfully used in BPM synthesis process to separate and analyze,quantitatively the raw material, reaction solution and product. The experimental result is of a certain value in guiding the study on BPM synthesis.

Abstract:

Bis (2,2,6,6-tetramethyl-4-piperidyl) maleate (BPM) is a kind of intermediate for newer hindered amine light stabilizer, being of high value for study and application. However, the report about the analysis of BPM and its reaction solution has not been seen till now. In the synthesis reaction solution of BPM, besides great quantity of solvent,xylene mixture, ethyl benzene, there are a little unreacted dimethyl maleate (DMM), 2,2,6,6,-tetramethyl-4-piperdinol (TMP) and BPM. BPM is weekly alkaline polyfunctional organic compound, dissociating easily in aqueous solution. When analyzing it with common liquid chromatography,some problems such as trailing peaks, asymmetric peaks, low resolution, unstable retention time will appear. In this paper,the ion suppression chromatography (ISC) technique was successfully used in BPM synthesis process to separate and analyze,quantitatively the raw material, reaction solution and product. The experimental result is of a certain value in guiding the study on BPM synthesis.

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