Embolic particles are described. The particles are reaction products of a prepolymer solution including at least one polyether macromer and an appropriate monomer.
根据描述,这些颗粒是预聚物溶液的反应产物,包括至少一种聚醚大分子和适当的单体。
Bimetallic Schiff-base aluminum complexes based on pentaerythrityl tetramine and their stereoselective polymerization of racemic lactide
A series of Schiffbasealuminum(III) complexes with bimetallic active centers are synthesized. Their catalytic properties in the solution polymerization of racemiclactide (rac-LA) are examined. The modifications in the auxiliary ligand exhibited a dramatic influence on the catalytic performance. Among these complexes, 3a has the highest stereoselectivity (Pm = 0.91) owing to the bulky tert-butyl