Academic Journal
Introducing the Reversible Reaction of CO 2 with Diamines into Nonisocyanate Polyurethane Synthesis
| العنوان: | Introducing the Reversible Reaction of CO 2 with Diamines into Nonisocyanate Polyurethane Synthesis |
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| المؤلفون: | Sibo Xie, Yunqi Li, Yang Chai, Qin Chen, Michael North, Haibo Xie |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Biochemistry, Medicine, Neuroscience, Biotechnology, Evolutionary Biology, Developmental Biology, Virology, Environmental Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, thiol – ene, considered greener alternatives, mild conditions yielded, 1 ° c, obtained nipus could, nipus considerably depends, facile reversible reaction, acyclic diene metathesis, functionalized carbamate monomers, 2 , reversible reaction, − 1, situ <, optimal conditions, carbamate intermedia, − 26, tunable properties, traditional polyurethanes, thioether urethane, taking advantage |
| الوصف: | Nonisocyanate polyurethanes (NIPUs) are considered greener alternatives to traditional polyurethanes, and the preparation of NIPUs considerably depends on the design and synthesis of suitable monomers. Herein, we propose a toolbox for in situ capturing and conversion of CO 2 into α,ω-diene-functionalized carbamate monomers by taking advantage of the facile reversible reaction of CO 2 with diamines in the presence of organic superbases. The activation of CO 2 into carbamate intermedia was demonstrated by NMR and in situ FTIR, and the optimal conditions to prepare α,ω-diene-functionalized carbamate monomers were established. Thiol–ene and acyclic diene metathesis (ADMET) polymerization of these monomers under mild conditions yielded a series of poly(thioether urethane)s and unsaturated aromatic–aliphatic polyurethanes with high yield and glass transition temperatures ranging from −26.8 to −1.1 °C. These obtained NIPUs could be further modified via postpolymerization oxidation or hydrogenation to yield poly(sulfone urethane) and saturated polyurethane with tunable properties. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Introducing_the_Reversible_Reaction_of_CO_sub_2_sub_with_Diamines_into_Nonisocyanate_Polyurethane_Synthesis/24802620 |
| DOI: | 10.1021/acsmacrolett.3c00621.s001 |
| الاتاحة: | https://doi.org/10.1021/acsmacrolett.3c00621.s001 https://figshare.com/articles/journal_contribution/Introducing_the_Reversible_Reaction_of_CO_sub_2_sub_with_Diamines_into_Nonisocyanate_Polyurethane_Synthesis/24802620 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.C6BD122 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsmacrolett.3c00621.s001 |
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