Parra-García Sergio, Saura-Llamas Isabel, Bautista Delia, Gil-Rubio Juan, García-López José-Antonio
Departamento de Química Inorgánica, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain.
ACTI, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain.
Macromolecules. 2024 Jul 9;57(14):6577-6582. doi: 10.1021/acs.macromol.4c01089. eCollection 2024 Jul 23.
A new approach to ring-opening polymerization (ROP) based on C(sp)-C(sp) bond cleavage is reported. This process is based on the ability of Pd to promote both the β-carbon elimination of a bifunctional cyclobutanol precursor and the C-C coupling process with the resulting Pd-alkyl intermediate. Consequently, novel polyketone materials are obtained. Owing to the modular synthesis of the used cyclobutanol monomers, the present ROP reaction allows the introduction of substitution patterns in the polymeric chain that are not accessible by current polyketone synthesis methodologies. We have explored in detail the initiation, propagation, and termination steps of this new polymerization process.
报道了一种基于C(sp)-C(sp)键裂解的开环聚合（ROP）新方法。该过程基于钯促进双官能环丁醇前体的β-碳消除以及与所得钯-烷基中间体的碳-碳偶联过程的能力。因此，获得了新型聚酮材料。由于所用环丁醇单体的模块化合成，目前的ROP反应允许在聚合物链中引入当前聚酮合成方法无法实现的取代模式。我们详细研究了这种新聚合过程的引发、增长和终止步骤。
