2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis

J. I. Perez-Martinez, M. J. Arias, J. M. Gines, J. R. Moyano, E. Morillo, P. J. Sanchez-Soto, C. Novák

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The aqueous solubility of the pesticide 2,4-D was improved by inclusion complexation with α-CD. The formation of such inclusion compounds was studied via the phase-solubility diagram (solution state) and by DSC and HSM (solid state). 2,4-D presented a typical Bs Higuchi solubility curve, coprecipitating a 1:2 pesticide-α-CD complex. In order to obtain solid complexes, three processing methods were checked: kneading, coprecipitation and spray-drying. DSC and HSM showed that only the last two of these yielded true inclusion compounds. Chemical analysis also revealed that the stoichiometry of such solid complexes corresponds to a 2,4-D-α-CD ratio of 1:2.

Original languageEnglish
Pages (from-to)965-972
Number of pages8
JournalJournal of Thermal Analysis and Calorimetry
Volume51
Issue number3
Publication statusPublished - 1998

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2,4-Dichlorophenoxyacetic Acid
Cyclodextrins
Thermoanalysis
pesticides
thermal analysis
solubility
Solubility
inclusions
Pesticides
preparation
Spray drying
Coprecipitation
Complexation
chemical analysis
Stoichiometry
drying
sprayers
stoichiometry
diagrams
solid state

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Perez-Martinez, J. I., Arias, M. J., Gines, J. M., Moyano, J. R., Morillo, E., Sanchez-Soto, P. J., & Novák, C. (1998). 2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis. Journal of Thermal Analysis and Calorimetry, 51(3), 965-972.

2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis. / Perez-Martinez, J. I.; Arias, M. J.; Gines, J. M.; Moyano, J. R.; Morillo, E.; Sanchez-Soto, P. J.; Novák, C.

In: Journal of Thermal Analysis and Calorimetry, Vol. 51, No. 3, 1998, p. 965-972.

Research output: Contribution to journalArticle

Perez-Martinez, JI, Arias, MJ, Gines, JM, Moyano, JR, Morillo, E, Sanchez-Soto, PJ & Novák, C 1998, '2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis', Journal of Thermal Analysis and Calorimetry, vol. 51, no. 3, pp. 965-972.
Perez-Martinez JI, Arias MJ, Gines JM, Moyano JR, Morillo E, Sanchez-Soto PJ et al. 2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis. Journal of Thermal Analysis and Calorimetry. 1998;51(3):965-972.
Perez-Martinez, J. I. ; Arias, M. J. ; Gines, J. M. ; Moyano, J. R. ; Morillo, E. ; Sanchez-Soto, P. J. ; Novák, C. / 2,4-D-α-cyclodextrin complexes. Preparation and characterization by thermal analysis. In: Journal of Thermal Analysis and Calorimetry. 1998 ; Vol. 51, No. 3. pp. 965-972.
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