Biocatalytic nanoparticles for the stabilization of degassed single electron transfer-living radical pickering emulsion polymerizations
| العنوان: | Biocatalytic nanoparticles for the stabilization of degassed single electron transfer-living radical pickering emulsion polymerizations |
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| المؤلفون: | Adrian Moreno, Mika Henrikki Sipponen |
| المصدر: | Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020) Nature Communications |
| بيانات النشر: | Nature Portfolio, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Free Radicals, Latex, Polymers, Science, Radical polymerization, General Physics and Astronomy, Nanoparticle, Emulsion polymerization, Electrons, 02 engineering and technology, macromolecular substances, 010402 general chemistry, 01 natural sciences, Lignin, General Biochemistry, Genetics and Molecular Biology, Article, Nanocomposites, Polymerization, Electron Transport, Glucose Oxidase, Copolymer, Glucose oxidase, lcsh:Science, chemistry.chemical_classification, Chitosan, Multidisciplinary, biology, technology, industry, and agriculture, General Chemistry, Polymer, Hydrogen Peroxide, 021001 nanoscience & nanotechnology, Enzymes, Immobilized, Pickering emulsion, 0104 chemical sciences, chemistry, Chemical engineering, biology.protein, Biocatalysis, Nanoparticles, Emulsions, lcsh:Q, 0210 nano-technology |
| الوصف: | Synthetic polymers are indispensable in many different applications, but there is a growing need for green processes and natural surfactants for emulsion polymerization. The use of solid particles to stabilize Pickering emulsions is a particularly attractive avenue, but oxygen sensitivity has remained a formidable challenge in controlled polymerization reactions. Here we show that lignin nanoparticles (LNPs) coated with chitosan and glucose oxidase (GOx) enable efficient stabilization of Pickering emulsion and in situ enzymatic degassing of single electron transfer-living radical polymerization (SET-LRP) without extraneous hydrogen peroxide scavengers. The resulting latex dispersions can be purified by aqueous extraction or used to obtain polymer nanocomposites containing uniformly dispersed LNPs. The polymers exhibit high chain-end fidelity that allows for production of a series of well-defined block copolymers as a viable route to more complex architectures. The use of solid particles to stabilize Pickering emulsions is a particularly attractive avenue, but oxygen sensitivity remains an obstacle in controlled polymerization reactions. Here, the authors show that lignin nanoparticles coated with chitosan and glucose oxidase enable efficient stabilization of Pickering emulsion and in situ enzymatic degassing of living radical polymerization. |
| اللغة: | English |
| تدمد: | 2041-1723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1c6fe805f31b360e8b2fb1955e59db https://doaj.org/article/9c85e449e71944af971dae3656471c0f |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....dd1c6fe805f31b360e8b2fb1955e59db |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
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