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Russian Journal of Physical Chemistry B

, Volume 13, Issue 1, pp 32–48 | Cite as

Kinetics and Mechanism of Flexible Nanoparticles-Catalyzed Piperidinolysis of Anionic Phenyl Salicylate: Flexible Nanoparticles: CTABr/M2X/H2O (M2X = 4-MeOSaNa2, 3-, 4-MeSaNa2)

  • Norazizah Abdul Razak
  • Ibrahim Isah FaggeEmail author
  • Esam Abdulkader Elhefian
  • Mohammad Niyaz KhanEmail author
Kinetics and Mechanism of Chemical Reactions Catalysis
  • 2 Downloads

Abstract

Apparent pseudo second-order rate constants, kX, for flexible nanoparticles, FNs, (CTABr/M2X/H2O)-catalyzed piperidinolysis of anionic phenyl salicylate, PSa, at a constant [CTABr], 0.1 M piperidine (Pip) and temperature, were calculated from an empirical equation. CTABr = cetyltrimethylammonium bromide and X2− = 4-methoxysalicylate (4-MeOSa2−) and 3-,4-methylsalicylate (3-,4-MeSa2−) with Sa2− representing O-C6H3CO 2 . The values of kX/k0 = μ measure the apparent rate enhancement due to FN catalysis for piperidinolysis of PSa at a constant [CTABr] and temperature. The values of μ decrease with the increase in [CTABr] within the range of 5–15 mM.

Keywords

cationic surfactant counterionic salts cationic nanoparticles kinetics catalysis 

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of ScienceUniversity of MalayaKuala LumpurMalaysia
  2. 2.Department of Chemistry, Faculty of ScienceSabratha UniversitySabrathaLibya

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