Publications by authors named "M I Antonopoulou"
Acid-Enhanced Photoiniferter Polymerization under Visible Light.
Angew Chem Int Ed Engl
December 2024
Photoiniferter (PI) is a promising polymerization methodology, often used to overcome restrictions posed by thermal reversible addition-fragmentation chain-transfer (RAFT) polymerization. However, in the overwhelming majority of reports, high energy UV irradiation is required to effectively trigger photolysis of RAFT agents and facilitate the polymerization, significantly limiting its potential, scope, and applicability. Although visible light PI has emerged as a highly attractive alternative, most current approaches are limited to the synthesis of lower molecular weight polymers (i.
View Article and Find Full Text PDFBackground: The role of primary healthcare (PHC) during a pandemic varies across European countries. The coronavirus disease 2019 (COVID-19) pandemic has altered the working practices of family medicine doctors and impacted the resilience of healthcare systems.
Objectives: This study aimed to examine European healthcare system responses to the pandemic, focusing on rural and urban differences.
Article Synopsis
- Chemical recycling of polymers using ATRP typically requires high temperatures (around 170 °C), which leads to high energy consumption and reduced depolymerization yields due to end-group deterioration.
- The introduction of initiators for continuous activator regeneration (ICAR) allows for significantly lower reaction temperatures, enabling depolymerization efficiency to increase from less than 1% to 96% at 120 °C.
- ICAR methodology has been shown to eliminate harmful side reactions at lower temperatures, is scalable up to 1 g, and is effective for both chlorine and bromine terminated polymers, working well with various catalysts.
The present study investigated the fate, and the biological effects posed by the presence of Disposable Face Masks (DFMs) into fresh- and saltwater media, using both chemical and biological testing. To this end, slightly fragmented DFMs were maintained in tanks with artificial sea water (ASW) or dHO (DFMASW and DFMdHO, respectively) for a period of 20 days (under continuous agitation, oxygen supply, and light/dark ration 1:1) to simulate both fresh- and saltwater natural conditions. Thereafter, DFMs leaching substances were determined, before proceeding to biological testing with the use of the marine bacterium Aliivibrio fischeri (Bioluminescence Inhibition assay), the fresh- and saltwater algal species Chlorococcum sp.
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