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Enzymatic transesterification of urethane-bond containing ester
Colloid and Polymer Science ( IF 2.4 ) Pub Date : 2020-07-10 , DOI: 10.1007/s00396-020-04689-2
Pia Skoczinski , Mónica K. Espinoza Cangahuala , Dina Maniar , Katja Loos

Here we demonstrate the feasibility and successful application of enzymes in polyurethane network synthesis as well as occurring hurdles that have to be addressed when using urethanes synthesis substrates. The enzymatic transesterification of an urethane-bond containing monofunctional ester and a model alcohol carbitol using lipases is discussed. The reaction is optimized in terms of transesterification time and temperature, the reaction solvent, the possibility of a cosolvent and the alcohol amount, the used transesterification environment, and the biocatalyst. Enzymatic cross-linking of polyurethanes can open up a pool of new possibilities for cross-linking and related polyurethane network properties due to the enzymes high enantio-, stereo-, and regioselectivity and broad substrate spectrum. Graphical abstract Graphical abstract

中文翻译:

含氨基甲酸酯键的酯的酶促酯交换

在这里,我们展示了酶在聚氨酯网络合成中的可行性和成功应用,以及在使用聚氨酯合成底物时必须解决的障碍。讨论了使用脂肪酶的含氨基甲酸酯键的单官能酯和模型醇卡必醇的酶促酯交换。该反应在酯交换时间和温度、反应溶剂、助溶剂的可能性和醇量、使用的酯交换环境和生物催化剂方面进行了优化。由于酶的高对映选择性、立体选择性和区域选择性以及广泛的底物谱,聚氨酯的酶促交联可以为交联和相关聚氨酯网络特性开辟新的可能性。图形摘要图形摘要
更新日期:2020-07-10
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