Polymerization initiation of pure 2-hydroxyethylmethacrylate under shock wave compression

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00556888" target="_blank" >RIV/68378271:_____/22:00556888 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1039/D1NJ06228J" target="_blank" >https://doi.org/10.1039/D1NJ06228J</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D1NJ06228J" target="_blank" >10.1039/D1NJ06228J</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polymerization initiation of pure 2-hydroxyethylmethacrylate under shock wave compression

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Polymerization initiation of pure 2-hydroxyethylmethacrylate under shock wave compression

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/EF15_006%2F0000674" target="_blank" >EF15_006/0000674: HiLASE Centre of Excellence</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

1369-9261

Svazek periodika

46

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

9258-9263

Kód UT WoS článku

000787851000001

EID výsledku v databázi Scopus

2-s2.0-85129955821