聚碳酸酯合成中的Salen钴配合物：双峰与单峰分子量分布

IF 1.7 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Russian Chemical Bulletin Pub Date : 2025-08-16 DOI:10.1007/s11172-025-4699-y

S. A. Rzhevskii, O. V. Shurupova, M. A. Topchii, A. F. Asachenko, A. V. Plutalova, I. P. Beletskaya, E. V. Chernikova

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引用次数: 0

摘要

在(salen)-钴（iii）配合物和铵或磷盐的作用下，环氧化物和二氧化碳的共聚通常会形成具有双峰分子量分布的聚碳酸酯。提出了一种利用水和醇作为配位添加剂制备分子量分布为单峰型的聚碳酸丙烯酯的方法。讨论了所观察到的效应的可能原因和聚合机理。

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Salen cobalt complexes in polycarbonate synthesis: bimodal versus unimodal molecular weight distribution

The copolymerization of epoxides and carbon dioxide under the action of (salen)-cobalt(iii) complexes and ammonium or phosphonium salts often results in the formation of polycarbonates with a bimodal molecular weight distribution. A method was proposed for preparing poly(propylene carbonate) with a unimodal molecular weight distribution due to the use of coordinating additives: water and alcohols. Possible reasons for the observed effects and the polymerization mechanism are discussed.

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来源期刊

Russian Chemical Bulletin 化学-化学综合

CiteScore

2.70

自引率

47.10%

发文量

257

审稿时长

3-8 weeks

期刊介绍： Publishing nearly 500 original articles a year, by leading Scientists from Russia and throughout the world, Russian Chemical Bulletin is a prominent international journal. The coverage of the journal spans practically all areas of fundamental chemical research and is presented in five sections: General and Inorganic Chemistry; Physical Chemistry; Organic Chemistry; Organometallic Chemistry; Chemistry of Natural Compounds and Bioorganic Chemistry.