Consulter le flux RSS

Publications

Affichage des publications 901 à 910 sur 4005 au total

Material chemistry

3-Carboxylic Acid and Formyl-Derived Coumarins as Photoinitiators in Photo-Oxidation or Photo-Reduction Processes for Photopolymerization upon Visible Light: Photocomposite Synthesis and 3D Printing Applications

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Mahmoud Rahal, Bernadette Graff, Joumana Toufaily, Tayssir Hamieh, Guillaume Noirbent, Didier Gigmes, Frédéric Dumur, Jacques Lalevée

Molecules -

Chemical Sciences

New Methodology to Determine the Surface Energy, Specific Interactions and Acid-Base Properties of Titanium Dioxide by Inverse Gas Chromatography

Inverse gas chromatography was used to characterize the thermodynamic surface and interfacial properties of titanium dioxide catalyst. The dispersive component of the surface energy of TiO2 was determined by using the various models of surface areas…

Tayssir Hamieh, Fatima Al-Ali, Ali Ali-Ahmad, Khaled Chawraba, Joumana Toufaily, Zahraa Youssef, Nabil Tabaja, Thibault Roques-Carmes, Jacques Lalevée

International Journal of Chemical Sciences -

Material chemistry

Design of keto-coumarin based photoinitiator for Free Radical Photopolymerization: Towards 3D printing and photocomposites applications

In this article, ten organic dyes based on keto-coumarin (KC) derivatives (MeO-Coum1, MeO-Coum10) have been synthesized and characterized as high performance photoinitiators for the Free Radical Photopolymerization (FRP) of acrylates upon visible…

Mahmoud Rahal, Bernadette Graff, Fabrice Morlet-Savary, Joumana Toufaily, Tayssir Hamieh, Frédéric Dumur, Jacques Lalevée

European Polymer Journal -

Polymers

Naphthalimide-Based Dyes as Photoinitiators under Visible Light Irradiation and their Applications: Photocomposite Synthesis, 3D printing and Polymerization in Water

In this work, six new fluorescent dyes derived from the naphthalimide scaffold (Napht1–Napht6) were synthesized and used as high-performance photoinitiating systems (PISs) in two and three-component systems (combined with iodonium salt (Iod) and/or…

Mahmoud Rahal, Haifaa Mokbel, Bernadette Graff, Vincent Pertici, Didier Gigmes, Joumana Toufaily, Tayssir Hamieh, Frédéric Dumur, Jacques Lalevée

ChemPhotoChem -

Electric power

A New Arm Voltage Control Scheme for a Single Phase Modular Multilevel Converter

Modular Multilevel Converters (MMCs) are widely used in medium to high voltage/power applications such as in energy transformation and grid connected systems. MMCs benefit from being redundant and allowing transformer-less operations. Unfortunately,…

Anthony Abdayem, Jean Sawma, Flavia Khatounian, Eric Monmasson, Ragi Ghosn

IECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society -

Electric power

Comparison of magnetic coupling topologies for interleaved multilevel inverters

This paper presents a study and comparison in terms of magnetic circuit sizing for two magnetic coupling topologies for interleaved multilevel inverters: the cyclic cascade and the secondary loop. This comparison includes modeling of both topologies…

Rita Mattar, Stéphane Lefebvre, Eric Monmasson, Mickael Petit, Christelle Saber, Marwan Ali

2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) -