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Polymerization initiation of pure 2-hydroxyethylmethacrylate under shock wave compression
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SYSNO ASEP 0556888 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polymerization initiation of pure 2-hydroxyethylmethacrylate under shock wave compression Author(s) Jia, Z.X. (FR)
Museur, L. (FR)
Traore, M. (FR)
Perruchot, Ch. (FR)
Brajer, Jan (FZU-D) ORCID
Böhm, Marek (FZU-D) ORCID
Kanaev, A. (FR)Number of authors 7 Source Title New Journal of Chemistry. - : Royal Society of Chemistry - ISSN 1144-0546
Roč. 46, č. 19 (2022), s. 9258-9263Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords polymerization ; pHEMA ; high pressure processing ; shock wave pressure Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000787851000001 EID SCOPUS 85129955821 DOI 10.1039/D1NJ06228J Annotation The ability to initiate chemical reactions without the need for potentially hazardous solvents, catalysts and radical initiators is of key importance for modern biotechnologies and medicine. In this study, laser-driven shock wave compression was performed on pure 2-hydroxyethylmethacrylate (HEMA) free of any additives in order to trigger the polymerization process. We showed that the generated peak shock-wave pressure in the range between 2 and 5.5 GPa permitted initiation of radical polymerization and the formation of poly-HEMA oligomers. The reaction begins with diradicals HEMA2˙˙ appearing at the peak pressure and, by reactions with HEMA monomers, forming HEMA3˙˙ diradicals on the 15 ns timescale. The chain propagation further occurs on the sub-μs timescale by associations of the trimer diradicals, which, because of a smaller reactivity, do not react with HEMA monomers. The proposed method can be considered for scale-up of the polymerization process of ultrapure organics. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1039/D1NJ06228J
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