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Amino Acid-Pillared Layered Double Hydroxide and Montmorillonite Thermal Characteristics

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Abstract

Zn-Al hydrotalcite (HT) and Na-montmorillonite (Na-mont) were pillared by the deprotonated and the protonated forms of L-tyrosine, respectively. Pillaring was successful as the increased basal spacings due to intercalation attest. L-Tyr-HT proved to be thermally less stabile than HT, while that of L-Tyr-mont did not change compared to Na-mont. DTG curves showed more mass loss steps for the hosts than for the intercalated compounds. The extra steps belonged to the decomposition of the amino acid derivatives. FT-IR spectra of the samples pretreated in vacuum in the 293-773 K temperature range also showed that intercalation was successful and L-Tyr-HT is more temperature sensitive than L-Tyr-mont.

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Authors and Affiliations

  1. Applied Chemistry Department, József Attila University, Rerrich B. tér 1, Szeged

    Å. Fudala, B. Hrivnák & I. Kiricsi

  2. Department of Organic Chemistry, József Attila University, Dóm tér 8, Szeged, H-6720, Hungary

    I. Pálinkó

Authors
  1. Å. Fudala
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  2. I. Pálinkó
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  3. B. Hrivnák
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  4. I. Kiricsi
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Fudala, Å., Pálinkó, I., Hrivnák, B. et al. Amino Acid-Pillared Layered Double Hydroxide and Montmorillonite Thermal Characteristics. Journal of Thermal Analysis and Calorimetry 56, 317–322 (1999). https://doi.org/10.1023/A:1010190315865

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  • DOI: https://doi.org/10.1023/A:1010190315865

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