Department of Chemistry, Moscow State University, Leninskye Gory 1, 3, Moscow 119991, Russia.
Research Institute for Physical Chemical Problems of the Belarusian State University, Leningradskaya Str., 14, 220006 Minsk, Belarus.
Molecules. 2023 Jan 27;28(3):1262. doi: 10.3390/molecules28031262.
A highly efficient one-step approach to the macromonomer synthesis using modified aluminum complexes as catalysts of ring-opening polymerization (ROP) of ε-caprolactone and ,-lactide was developed. The syntheses, structures, and catalytic activities of a wide range of aluminum salen complexes, , functionalized with unsaturated alcohol (HO(CH)OCH=CH) are reported. X-Ray diffraction studies revealed a tetragonal pyramidal structure for . Among the complexes -, the highest activity in bulk ROP of ε-caprolactone and ,-lactide was displayed by , affording polyesters with controlled molecular weights at low monomer to initiator ratios ( up to 15,000 g mol), relatively high polydispersities (Ð~1.8) and high number-average functionalities ( up to 85%).
开发了一种使用改性铝配合物作为ε-己内酯和丙交酯开环聚合（ROP）催化剂的高效一步法大分子单体合成方法。报道了一系列带有不饱和醇（HO(CH)OCH=CH）的铝席夫碱的合成、结构和催化活性。X 射线衍射研究表明为 。在这些配合物中，在本体 ROP 中显示出最高的活性ε-己内酯和丙交酯，在低单体与引发剂比例（高达 15,000 g mol）下得到分子量可控的聚酯，相对较高的多分散性（Ð~1.8）和高的数均官能度（高达 85%）。
