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Two Pathways of Thiolactone Incorporation into Polyurethanes and Their One-Pot Double Postfunctionalization
Macromolecules ( IF 5.1 ) Pub Date : 2020-12-11 , DOI: 10.1021/acs.macromol.0c01779 Iwona Misztalewska-Turkowicz 1, 2 , Olivier Coutelier 2 , Mathias Destarac 2
Macromolecules ( IF 5.1 ) Pub Date : 2020-12-11 , DOI: 10.1021/acs.macromol.0c01779 Iwona Misztalewska-Turkowicz 1, 2 , Olivier Coutelier 2 , Mathias Destarac 2
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Thiolactone-functionalized polyurethanes were produced by using a chain extension method. Isocyanate–telechelic urethane prepolymers of different chain lengths were prepared from two different diols and 4,4′-methylenebis(cyclohexyl isocyanate), and then reacted with two different thiolactone-functionalized diols, yielding polyurethanes bearing thiolactone groups either within or along the polymer backbone. Postmodification reactions were performed according to an amine–thiol–thiosulfonate conjugation strategy using various functional amines and thiosulfonates. Different characterization techniques were implemented to prove the double modification, for example, 1H NMR, 19F NMR, SEC, DSC, and fluorometry.
中文翻译：
硫内酯掺入聚氨酯的两种途径及其一键双后官能化
硫内酯官能化的聚氨酯是通过使用扩链法生产的。由两种不同的二醇和4,4'-亚甲基双（环己基异氰酸酯）制备不同链长的异氰酸酯-telechelic氨基甲酸酯预聚物，然后与两种不同的硫代内酯官能化的二醇反应，制得在聚合物主链内或沿聚合物主链带有硫代内酯基的聚氨酯。后修饰反应是根据胺-硫醇-硫代磺酸盐的共轭策略，使用各种功能性胺和硫代磺酸盐进行的。实施了不同的表征技术以证明双重修饰，例如1 H NMR，19 F NMR，SEC，DSC和荧光法。
更新日期：2020-12-22
中文翻译：
硫内酯掺入聚氨酯的两种途径及其一键双后官能化
硫内酯官能化的聚氨酯是通过使用扩链法生产的。由两种不同的二醇和4,4'-亚甲基双（环己基异氰酸酯）制备不同链长的异氰酸酯-telechelic氨基甲酸酯预聚物，然后与两种不同的硫代内酯官能化的二醇反应，制得在聚合物主链内或沿聚合物主链带有硫代内酯基的聚氨酯。后修饰反应是根据胺-硫醇-硫代磺酸盐的共轭策略，使用各种功能性胺和硫代磺酸盐进行的。实施了不同的表征技术以证明双重修饰，例如1 H NMR，19 F NMR，SEC，DSC和荧光法。
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