Investigating the effect of different catalytic systems on chain structure and end groups of CO2-based polycarbonates by MALDI-TOF mass spectrometry

被引：8

作者：

Chiarcos, Riccardo ^{[1
]}

Laus, Michele ^{[1
]}

Sparnacci, Katia ^{[1
]}

Po, Riccardo ^{[2
]}

Biagini, Paolo ^{[2
]}

Tritto, Incoronata ^{[3
]}

Boggioni, Laura ^{[3
]}

Losio, Simona ^{[3
]}

机构：

[1] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnolog DISIT, Viale T Michel 11, I-15121 Alessandria, Italy

[2] New Energies Renewable Energies & Mat Sci Res Ctr, Eni SpA, Via G Fauser 4, I-28100 Novara, Italy

[3] Inst Chem Sci & Technol G Natta, CNR SCITEC, Via Alfonso Corti 12, I-20133 Milan, Italy

来源：

EUROPEAN POLYMER JOURNAL | 2023年 / 192卷

关键词：

Salen-chromium complexes; Cyclohexene; CO; 2; copolymerization; MALDI-TOF; End group analysis; CARBON-DIOXIDE; ALTERNATING COPOLYMERIZATION; CYCLOHEXENE OXIDE; CO2; EPOXIDES; POLYMERIZATION; COMPLEXES;

D O I：

10.1016/j.eurpolymj.2023.112058

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The alternating copolymerization of CO2 and CHO with salen-type chromium complexes salenCrX, where X is chloride (1) or azide (2) with different cocatalysts under the same experimental conditions, has been described. The cocatalysts include TPPCl, DMAP, UHFFA, PPNY and PPZY salts, where Y is chloride or azide. A detailed end-group analysis via MALDI-TOF was performed and the complex patterns of MALDI-TOF spectra of the co-polymers were rationalized for comparison with results obtained by 1H NMR spectroscopy, as well as by the catalytic behavior and copolymer characteristics. It appears that the entire structure of the cocatalyst, and not only the anion, should be considered in designing the structure of polycarbonates.

引用

页数：10

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