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Vol. 26 No. 5 (2014): Vol 26 Issue 5

Copyright (c) 2014 AJC

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Reactivity of 2-Phosphonobutane-1,2,4-tricarboxylic Acid Esterification

https://doi.org/10.14233/ajchem.2014.17279
Sheng-Fu Mei
School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, P. R. China
Jin Liu
Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022, P.R. China; School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, P. R. China
Zhen Li
Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University, Hefei 230022, P.R. China; School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, P. R. China
Yan Chen
School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, P. R. China
Jing Zhang
School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, P. R. China

Corresponding Author(s) : Jin Liu

liujin@ahjzu.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 5 (2014): Vol 26 Issue 5

Abstract

In this study, 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), a phosphorus-containing monomer, was used as raw materials to synthesize phosphate polyester polyol by esterification reaction. The esterification of PBTCA was investigated with different small primary alcohols by the change of acid value (Av) and the products were characterized with Fourier transform infrared spectra and phosphorus nuclear magnetic resonance (31P NMR). The results indicated that there were three types of phosphorus-containing esters formed in the esterification reaction system of PBTCA. Firstly, one of hydroxyl groups in the phosphonic group reacted with small molecules of primary alcohols and then the carboxylic acid groups at 1,4 sites reacted with primary alcohols to form esters. The effects of initial reactant molar ratio and water content of PBTCA on corresponding ester composition were examined.

Keywords

2-Phosphonobutane-1 2 4-tricarboxylic acid Esterification Primary alcohols 31P NMR
Mei, S.-F., Liu, J., Li, Z., Chen, Y., & Zhang, J. (2014). Reactivity of 2-Phosphonobutane-1,2,4-tricarboxylic Acid Esterification. Asian Journal of Chemistry, 26(5), 1530–1532. https://doi.org/10.14233/ajchem.2014.17279
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