Biobased chiral semi-crystalline or amorphous high-performance polyamides and their scalable stereoselective synthesis
| العنوان: | Biobased chiral semi-crystalline or amorphous high-performance polyamides and their scalable stereoselective synthesis |
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| المؤلفون: | Cordt Zollfrank, Marion Woelbing, Volker Sieber, Alexander Poethig, Daniel Van Opdenbosch, Moritz Hoehenberger, Sebastian Lessig, Harald Strittmatter, Malte Winnacker, Johannes Raab, Claudia Falcke, Paul N. Stockmann, Dominik L. Pastoetter |
| المساهمون: | Publica |
| المصدر: | Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020) Nature Communications |
| بيانات النشر: | Nature Portfolio, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Green chemistry, Magnetic Resonance Spectroscopy, Materials science, Lactams, Science, Molecular Conformation, General Physics and Astronomy, Crystallography, X-Ray, 010402 general chemistry, 01 natural sciences, Article, General Biochemistry, Genetics and Molecular Biology, Polymerization, chemistry.chemical_compound, Biopolymers, Stereochemistry, Laurolactam, Cellulose, lcsh:Science, chemistry.chemical_classification, Multidisciplinary, 010405 organic chemistry, Polymer characterization, Temperature, Caprolactam, Stereoisomerism, General Chemistry, Polymer, 0104 chemical sciences, Amorphous solid, ddc, Nylons, Monomer, chemistry, Chemical engineering, Chromatography, Gel, lcsh:Q, Polymer synthesis, Crystallization, Glass transition |
| الوصف: | The use of renewable feedstock is one of the twelve key principles of sustainable chemistry. Unfortunately, bio-based compounds often suffer from high production cost and low performance. To fully tap the potential of natural compounds it is important to utilize their functionalities that could make them superior compared to fossil-based resources. Here we show the conversion of (+)-3-carene, a by-product of the cellulose industry into ε-lactams from which polyamides. The lactams are selectively prepared in two diastereomeric configurations, leading to semi-crystalline or amorphous, transparent polymers that can compete with the thermal properties of commercial high-performance polyamides. Copolyamides with caprolactam and laurolactam exhibit an increased glass transition and amorphicity compared to the homopolyamides, potentially broadening the scope of standard polyamides. A four-step one-vessel monomer synthesis, applying chemo-enzymatic catalysis for the initial oxidation step, is established. The great potential of the polyamides is outlined. Bio‐based compounds often suffer from high production cost and low performance when used to synthesise macromolecules. Here the authors show the conversion of (+)‐3‐ carene, a by‐product of the cellulose industry, into its ε‐lactams and then to polyamides with high‐performance thermal properties. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2041-1723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e36c10679273b566e60d9d66c82f056 https://doaj.org/article/c2456850ff2b4580a0079dd6b1747632 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....9e36c10679273b566e60d9d66c82f056 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
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