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路易斯酸性金属聚酯化催化剂的动力学研究——水解降解是催化性能的关键因素。

Kinetic studies on Lewis acidic metal polyesterification catalysts - hydrolytic degradation is a key factor for catalytic performance.

作者信息

Wolzak Lukas A, van Gemert Rogier, van den Berg Keimpe J, Reek Joost N H, Tromp Moniek, Korstanje Ties J

机构信息

Sustainable Materials Characterization, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands

Bio-inspired, Homogeneous and Supramolecular Catalysis, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands

出版信息

Catal Sci Technol. 2022 Mar 11;12(7):2056-2060. doi: 10.1039/d1cy02306c. eCollection 2022 Apr 4.

DOI:10.1039/d1cy02306c
PMID:35444794
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8978806/
Abstract

Kinetic analysis of polyesterification reactions using Lewis-acidic metal catalysts have been performed. While Sn-based catalysts are superior to Ti-based catalysts under neat polycondensation conditions (high [HO]), the result is inverted under azeotropic conditions (low [HO]). These findings show that the catalytic activity is crucially determined by the robustness of the catalyst against hydrolytic degradation.

摘要

已对使用路易斯酸性金属催化剂的聚酯化反应进行了动力学分析。虽然在纯缩聚条件下（高[HO]）锡基催化剂优于钛基催化剂，但在共沸条件下（低[HO]）结果却相反。这些发现表明，催化活性关键取决于催化剂对水解降解的稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/d0f5d78d4a85/d1cy02306c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/c9d3f15de568/d1cy02306c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/6d91bece3bbb/d1cy02306c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/d0f5d78d4a85/d1cy02306c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/c9d3f15de568/d1cy02306c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/6d91bece3bbb/d1cy02306c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c115/8978806/d0f5d78d4a85/d1cy02306c-f2.jpg

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