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Publications by authors named "Alexander Kachmarzhik"

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Kinetics and Mechanism of Liquid-State Polymerization of 2,4-Hexadiyne-1,6-diyl -(-toluenesulfonate) as Studied by Thermal Analysis.
Andrey Galukhin Alexander Kachmarzhik Alexander Rodionov Georgy Mamin Marat Gafurov

Polymers (Basel)

December 2023

A detailed investigation of the liquid-state polymerization of diacetylenes by calorimetric (DSC) and spectroscopic (in situ EPR) thermal analysis techniques is performed. Isoconversional kinetic analysis of the calorimetric data reveals that liquid-state polymerization is governed by a well-defined rate-limiting step as evidenced by a nearly constant isoconversional activation energy. By comparison, solid-state polymerization demonstrates isoconversional activation energy that varies widely, signifying multistep kinetics behavior.

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Synopsis of recent research by authors named "Alexander Kachmarzhik"

  • - Alexander Kachmarzhik's recent research focuses on the polymerization kinetics and mechanisms of specific diacetylenes, particularly emphasizing the comparison between liquid-state and solid-state polymerization processes.
  • - His study utilizes advanced thermal analysis techniques, such as Differential Scanning Calorimetry (DSC) and in situ Electron Paramagnetic Resonance (EPR) spectroscopy, to reveal insights into the governing factors of liquid-state polymerization.
  • - The findings indicate that liquid-state polymerization exhibits a well-defined rate-limiting step characterized by a consistent activation energy, in contrast to solid-state polymerization, which is shown to have variable activation energies due to a multistep kinetics behavior.

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