Determination of pKa Values for Acrylic, Methacrylic and Itaconic Acids by 1H and 13C NMR in Deuterated Water

Authors

  • Emma Lilia Ibarra-Montaño CIP, S.A. de C.V., Marcos Achar Lobaton No 2, Tepexpan Municipio Acolman de Nezahualcóyotl, CP 55885Estado de México
  • Norma Rodríguez-Laguna Universidad Autónoma Metropolitana-Iztapalapa, Depto. de Química, Área de Química Analítica, San Rafael Atlixco 186, Col. Vicentina, CP 09340 México
  • Aníbal Sánchez-Hernández Universidad Autónoma Metropolitana-Iztapalapa, Depto. de Química, Área de Química Analítica, San Rafael Atlixco 186, Col. Vicentina, CP 09340 México
  • Alberto Rojas-Hernández Universidad Autónoma Metropolitana-Iztapalapa, Depto. de Química, Área de Química Analítica, San Rafael Atlixco 186, Col. Vicentina, CP 09340 México

DOI:

https://doi.org/10.6000/1929-5030.2015.04.01.2

Keywords:

pKa values, acrylic acid derivatives, HYPNMR, 1H NMR, 13C NMR.

Abstract

Acrylic, methacrylic and itaconic acids have Brønsted acidity given by carboxylic groups, and they are extensively used in polymerization for modification of several soft-mater materials. By this reason it is important to propose better characterization studies and alternatives to obtain more of their physicochemical properties. In this work the pKa values of these acids are obtained by adjusting NMR chemical shifts for hydrogen and carbon nuclei as a function of pH with program HYPNMR, and compared with those obtained by potentiometric and conductometric titrations.

References


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Published

2015-02-25

How to Cite

Ibarra-Montaño, E. L., Rodríguez-Laguna, N., Sánchez-Hernández, A. ., & Rojas-Hernández, A. (2015). Determination of pKa Values for Acrylic, Methacrylic and Itaconic Acids by 1H and 13C NMR in Deuterated Water. Journal of Applied Solution Chemistry and Modeling, 4(1), 7–18. https://doi.org/10.6000/1929-5030.2015.04.01.2

Issue

Vol. 4 No. 1 (2015)

Section

General Articles

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