Ulrich Maschke

Synthesis, structural characterization, and DFT analysis of an ester-linked discotic liquid crystal: Influence on the dielectric properties of 5CB binary mixtures

Sarra Majdoub, Nadia Baccari, Outaf Fliss, Besbes Rafaa et autres

A novel discotic liquid crystal (LC), 4-{[4-(dodecyloxy)benzoyl]oxy}phenyl 4-{[4-(dodecyloxy)benzoyl]oxy}benzoate (4-DOBOB), exhibiting a columnar mesophase, was synthesized via esterification and characterized using a combined experimental and theoretical approach. Molecular structure and purity were confirmed by 1 H NMR and FTIR spectroscopy. Polarized optical microscopy …

Tunisie, fr (code pays fourni par la source)

Efficient recovery of uranyl ion from aqueous solutions via cloud point extraction with triton x-114 and biodegradable amino acid systems

Mohammed Kasmi, Abdelkader Benderrag, Boumediene Haddou, Mu. Naushad et autres

Algérie, sa, fr (code pays fourni par la source)

A Novel Plasticization Mechanism in Poly(Lactic Acid)/PolyEthyleneGlycol Blends: From Tg Depression to a Structured Melt State

Nawel Mechernene, Lina Benkraled, Assia Zennaki, Khadidja Arabeche et autres

Polylactic acid (PLA) is a promising biodegradable polymer whose widespread application is hindered by inherent brittleness. Polyethylene glycol (PEG) is a common plasticizer, but the effects of intermediate molecular weights, such as 4000 g/mol, on the coupled thermal, mechanical, and rheological properties …

Algérie, fr (code pays fourni par la source)

Removal of Methylene Blue From Contaminated Water Using Eco‐Friendly Cross‐Linked Chitosan/Organomodified Montmorillonite Nanohydrogels

Maroua Brahimi, Lahcene Souli, Yazid Derouiche, Mohammed Messaoudi et autres

ABSTRACT Cross‐linked chitosan/organomodified montmorillonite nanohydrogels (Cro‐Cs/Org‐Mt) were green synthesized using chitosan obtained by deacetylation of chitin from shrimp, organomodified montmorillonite with cetyltrimethylammonium bromide, and EDTA as a crosslinking agent. Three nanohydrogels were prepared with different chitosan: Org‐Mt ratios: Cro‐Cs 1 /Org‐Mt 3 …

Algérie, Ouganda, fr (code pays fourni par la source)

From Rigid to Elastic: Tailoring the Properties of Linear Poly( IBOA ‐co‐ 2EHA ) Copolymers Synthesized by UV Polymerization

Djazia Bendeddouche, Lamia Bedjaoui, Aida Jover, Mohammed Aymen Zehouani et autres

ABSTRACT This study systematically investigated poly(isobornyl acrylate (IBOA)‐co‐2‐ethylhexyl acrylate (2‐EHA)) linear random copolymers synthesized via free radical photopolymerization to develop polyacrylate materials with tunable mechanical properties. A series of homopolymers and five copolymer compositions with varying IBOA content were prepared to study …

Algérie, es, fr (code pays fourni par la source)

The Cyano group as a polarity switch: Enhancing dielectric anisotropy in hydrogen-bonded nOBAF:CNPy complexes

Nadia Baccari, Ahlem Guesmi, Naoufel Ben Hamadi, Taoufik Soltani et autres

• New H-bonded LCs from fluoro benzoic acids and cyanopyridine were synthesized. • FT-IR confirmed supramolecular complex formation via O-H⋯N bonding. • All complexes exhibit enantiotropic nematic and smectic G phases. • Alkyl chain length modulates the thermal stability of nematic vs. …

Tunisie, sa, fr, Algérie (code pays fourni par la source)

Efficient and rapid removal of methylene blue (MB) using Moringa oleifera-based bioadsorbents: Harnessing the powder for fabrication of new hydrogel beads

Kacem Ben Binah, Mohamed Belkacem, Mu. Naushad, Asmaa Benettayeb et autres

Algérie, sa, fr (code pays fourni par la source)

Intermolecular interactions and nematic behavior in hydrogen-bonded bimesogens: A combined experimental and DFT study

Nadia Baccari, Emna Rahali, Habib Ayeb, Naoufel Ben Hamadi et autres

Tunisie, sa, Algérie, fr (code pays fourni par la source)

Toward sustainable transformer oil recycling: comparative efficacy of adsorbents and CFD simulation analysis

Mourad Zebida, Chems Eddine Gherdaoui, Chakib Alaoui, Nouria Bouchikhi et autres

fr, Algérie (code pays fourni par la source)

Photocatalyse verte et réutilisable : conception de nanocomposites Cu₃TiO₅/MMT pour une économie circulaire dans le traitement des polluants organiques bromés

Abdulrahman Al-Ameri, Kahina Bentaleb, Zohra Bouberka, Nesrine Dalila Touaa et autres

International audience

fr, Algérie (code pays fourni par la source)

Electrolytes polymères en gel élaborés par rayonnement UV pour l'éco-conception des batteries lithium-ion

Ana Barrera, Corinne Binet, Ulrich Maschke

International audience

fr (code pays fourni par la source)

Vers une gestion circulaire des plastiques bromés issus des DEEE : approche technologique et évaluation environnementale

Rachida Khadidja Benmammar, Zohra Bouberka, Ulrich Maschke

International audience

fr, Algérie (code pays fourni par la source)