L-Lactide Polymerization Kinetics in the Presence of Ti(Tbse)2 by Differential Scanning Calorimetry

S. S. Moskvichev; Москвичев С. С.; P. V. Dmitryakov; Дмитряков П. В.; N. G. Sedush; Седуш Н. Г.; S. N. Chvalun; Чвалун С. Н.

doi:10.31857/S0207401X23070129

L-Lactide Polymerization Kinetics in the Presence of Ti(Tbse)2 by Differential Scanning Calorimetry

Authors: Moskvichev S.S.¹^,2, Dmitryakov P.V.¹, Sedush N.G.¹^,3, Chvalun S.N.¹^,3
Affiliations:
1. National Research Center “Kurchatov Institute
2. Mendeleev University of Chemical Technology of Russia
3. Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences
Issue: Vol 42, No 7 (2023)
Pages: 33-40
Section: XXXIV СИМПОЗИУМ “СОВРЕМЕННАЯ ХИМИЧЕСКАЯ ФИЗИКА” (СЕНТЯБРЬ 2022 г., ТУАПСЕ)
URL: https://vestnikugrasu.org/0207-401X/article/view/674850
DOI: https://doi.org/10.31857/S0207401X23070129
EDN: https://elibrary.ru/YCIPHG
ID: 674850

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Abstract
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Abstract

Polylactide is a biodegradable polymer that is increasingly used in the production of medical devices and environmentally friendly packaging. The search for new catalysts for the synthesis of polylactide that do not contain toxic tin and provide a polymer with a controlled set of properties is an urgent problem. In this study, a catalytic complex based on titanium (IV) is synthesized and characterized. The kinetics of the polymerization of L-lactide in the presence of this catalyst is studied by differential scanning calorimetry (DSC), the reaction enthalpy (–125.1 ± 1.5 J/g) is determined, and the kinetic parameters of the Arrhenius equation are calculated (Ea = 95.7 ± 7.5 kJ/mol, lnAeff = 22.7 ± 1.9).

Keywords

polylactide, titanium(IV) complex, ring-opening polymerization, kinetics

References

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