Polymerization of D,L-lactide in the presence of Boltorn™ polyester polyol-Reference-Cited by-同舟云学术

Polymerization of D,L-lactide in the presence of Boltorn™ polyester polyol

Published:2022-07-31 Issue:3 Volume:17 Page:242-252
ISSN:2686-7575
Container-title:Fine Chemical Technologies
language:
Short-container-title:Fine Chem. Technol.

Author:

Gomzyak V. I.¹^ORCID,Bychkov N. V.²^ORCID,Aduev A. S.²^ORCID,Ivanova V. A.³^ORCID,Koshelev A. D.⁴^ORCID,Chvalun S. N.¹^ORCID

Affiliation:

1. MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies); National Research Center “Kurchatov Institute”

2. National Research Center “Kurchatov Institute”

3. Moscow Institute of Physics and Technology

4. Technical University of Darmstadt

Abstract

Objects. To synthesize monodisperse biodegradable hyperbranched polymers based on D,L-lactide in the presence of Boltorn™ H30 polyester polyol as a macroinitiator.Methods. 1H and 13C nuclear magnetic resonance (NMR) spectroscopy was used to study the chemical structure of the Boltorn™ H30 polyester polyol and (Boltorn™ H30)-PDLA hyperbranched copolymers. The molecular weight distribution of the polymers was studied by gel permeation chromatography (GPC). In order to study the thermal stability of Boltorn™ H30 polyester polyol, thermogravimetric analysis (TGA) was used. Polymerization of D,L-lactide was carried out in a block in the presence of Boltorn™ H30 polyester polyol.Results. The degree of branching of Boltorn™ H30 polyester polyol was calculated from NMR data, while the TGA method was used to determine the upper operational temperature range. The polymerization of D,L-lactide in the presence of Boltorn™ H30 polyester polyol used as a macroinitiator was studied. The molecular weight characteristics of the obtained copolymers were studied by NMR and GPC.Conclusions. Optimum conditions were determined for the polymerization of D,L-lactide when using Boltorn™ H30 polyester polyol as a macroinitiator. The possibility of synthesizing narrowly dispersed hyperbranched polymers (Boltorn™ H30)-PDLA under the described conditions was demonstrated.

Publisher

RTU MIREA

Subject

Inorganic Chemistry,Organic Chemistry,Fluid Flow and Transfer Processes,Process Chemistry and Technology

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