Aluminum Salen Complexes Modified with Unsaturated Alcohol: Synthesis, Characterization, and Their Activity towards Ring-Opening Polymerization of &epsilon;-Caprolactone and D,L-Lactide

Авторы: Zaitsev Kirill V., Trubachev Andrey D., Oprunenko Yuri F., Piskun Yuliya A., Vasilenko Irina V., Churakov Andrei V., Kostjuk Sergei V.
Журнал: Molecules
Том: 28
Номер: 3
Год издания: 2023
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1262
Номер статьи: 1262
DOI: 10.3390/molecules28031262
Аннотация: A highly efficient one-step approach to the macromonomer synthesis using modified aluminum complexes as catalysts of ring-opening polymerization (ROP) of .epsilon.-caprolactone and D,L-lactide was developed. The syntheses, structures, and catalytic activities of a wide range of aluminum salen complexes, 3a-c, functionalized with unsaturated alcohol (HO(CH2)4OCH=CH2) are reported. X-Ray diffraction studies revealed a tetragonal pyramidal structure for 3c. Among the complexes 3a-c, the highest activity in bulk ROP of .epsilon.-caprolactone and D,L-lactide was displayed by 3b, affording polyesters with controlled molecular weights at low monomer to initiator ratios (Mn up to 15,000 g mol-1), relatively high polydispersities (.D. 1.8) and high number-average functionalities (Fn up to 85%).
Добавил в систему: Зайцев Кирилл Владимирович

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