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

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

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 polyest...

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Bibliographic Details
Published in:Tonkie himičeskie tehnologii (Online) Vol. 17; no. 3; pp. 242 - 252
Main Authors: Gomzyak, V. I., Bychkov, N. V., Aduev, A. S., Ivanova, V. A., Koshelev, A. D., Chvalun, S. N.
Format: Journal Article
Language:English
Published: MIREA - Russian Technological University 31-07-2022
Subjects:
biodegradable polymers
boltorn™ polyester polyols
hyperbranched polymers
polylactide
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Summary: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.
ISSN:2410-6593
2686-7575
DOI:10.32362/2410-6593-2022-17-3-242-252