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Synthesis and characterization of well-defined star-shaped poly(L-lactides)статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Puchkov Alexander A., Sedush Nikita G., Buzin Alexander I., Bozin Timur N., Bakirov Artem V., Borisov Roman S., Chvalun Sergei N.
- Журнал: Polymer
- Том: 264
- Год издания: 2023
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 125573
- DOI: 10.1016/j.polymer.2022.125573
- Аннотация: The main goal of research is to study ring-opening polymerization of L-lactide in the presence of multifunctional alcohols in order to determine the optimal conditions for synthesis of star-shaped molecules of a predetermined well-defined structure, which is necessary for fine adjustment of material properties for various biomedical applications. The degree of polymerization of 3-, 4- and 6-arm star-shaped poly(L-lactides) varied from 10 to 100 monomer units per arm. It was found that under the same conditions polymerization rate and rate of initiation of co-initiator's hydroxyl groups can vary significantly depending on the structure and concentration of the selected alcohol. To prove the absence of cyclic, linear and comet-like structures in synthesized star-shaped PLLA, a variety of instrumental methods were used including GPC with triple detection, 1H NMR and MALDI. Study of properties and supramolecular structure of poly(L-lactides) using DSC and WAXS demonstrated that branching limits segmental mobility of the PLLA chains, especially for short arms, and hinders crystallization of star-shaped poly(L-lactides).
- Добавил в систему: Бакиров Артем Вадимович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Экспертное заключение | Ekspertnoe_zaklyuchenie_statya_Synthesis_and_Characterizati… | 578,4 КБ | 25 января 2023 [bakirov_artem] | |
| 2. | Полный текст | Полный текст статьи | Synthesis_and_characterization_of_well-defined_star-sha_Bak… | 5,8 МБ | 12 января 2023 [IrinaVital] |