Results 61 to 70 of about 2,106 (176)

Reactions of nitroxides 15. Cinnamates bearing a nitroxyl moiety synthesized using a Mizoroki–Heck cross-coupling reaction

Beilstein Journal of Organic Chemistry, 2015
Cinnamic acid derivatives bearing a nitroxyl moiety (2,2,6,6-tetramethyl-1-oxyl-4-piperidyl 3-E-aryl acrylates) were synthesized in 30–100% yield using a Mizoroki–Heck cross-coupling reaction between 4-acryloyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl and
Jerzy Zakrzewski, Bogumiła Huras
doaj   +1 more source

Synthesis and Characterization of Acrylate‐Based Block and Block‐Graft Copolymers Using Polyester‐Based Macro‐RAFT Agents Through Two‐Step Polymerization and Assessment of One‐Pot Epoxy Group Ring‐Opening Modification

Polymer Engineering &Science, EarlyView.
Schematic diagram of RAFT polymerization of acrylate monomers. ABSTRACT This study reports the synthesis of a macro‐RAFT agent based on poly(ɛ‐caprolactone) (PCL) via ring‐opening polymerization (ROP), which was subsequently used to prepare acrylate‐based block and block‐graft copolymers through RAFT polymerization.
Melahat Göktaş, Cengiz Aykaç
wiley   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Degradation of Crystalline Si‐Based Solar Modules With Varying Material Combinations—Part I: Encapsulant Degradation

Progress in Photovoltaics: Research and Applications, EarlyView.
This work deals with the degradation of solar modules with varying material combinations under accelerated aging conditions. By in situ moisture measurements and simulations of oxygen ingress, the consumption of stabilizing additives and polymer degradation can be correlated spatially resolved with the penetrating stressors.
Robert Heidrich, Oscar Lacroix‐Andrivet, Nikola Babić, Lasse Baldauf, Julia Rendon, Marko Jankovec, Marko Topič, Camille Bainier, Anton Mordvinkin, Hervé Vezin, Simon Pondaven, Ralph Gottschalg   +11 more
wiley   +1 more source

Redox nanoparticles: synthesis, properties and perspectives of use for treatment of neurodegenerative diseases

Journal of Nanobiotechnology, 2018
Oxidative stress (OS) and nitrative stress (NS) accompany many diseases, including Alzheimer’s disease (AD) and Parkinson’s disease (PD). Antioxidants have been proposed to counteract OS/NS in these diseases. Nevertheless, the effects of antioxidants are
Izabela Sadowska-Bartosz, Grzegorz Bartosz   +1 more
doaj   +1 more source

Human Serum Albumin Labelled with Sterically-Hindered Nitroxides as Potential MRI Contrast Agents

Molecules, 2020
Four albumin-nitroxide conjugates were prepared and tested as metal-free organic radical contrast agents (ORCAs) for magnetic resonance imaging (MRI).
Sergey Dobrynin, Sergei Kutseikin, Denis Morozov, Olesya Krumkacheva, Anna Spitsyna, Yurii Gatilov, Vladimir Silnikov, Goran Angelovski, Michael K. Bowman, Igor Kirilyuk, Alexey Chubarov   +10 more
doaj   +1 more source

Advance in One‐Pot Synthesis of Polymer‐Coated Nanogold: Au(III)–Monomer Redox Reaction Initiates Radical Polymerization and Produces a Potential Nanotag Platform

Small, EarlyView.
Gold nanoparticles are prepared simultaneously with the formation of a polymer, whose growth is initiated by direct interaction of Au(III) with a vinyl‐type monomer. Nanoparticles produce stable, bioorthogonal SERS signal originating from an isonitrile/carbene‐type functionality covalently anchored to the gold surface.
Hana Charvátová, Ivana Šeděnková, Jiřina Hromádková, Ognen Pop‐Georgievski, Michal Babič   +4 more
wiley   +1 more source

Characterization of the Pore Environments in Covalent Organic Frameworks by Dynamic Spin Probe Exchange

Small, EarlyView.
Covalent organic frameworks (COFs) with alkyl or triethylene glycol pore linings are probed with water‐dissolved nitroxide radicals using CW EPR spectroscopy. Adsorption affinity, local polarity, and radical concentration inside the pores are quantified, revealing hydrogen bonding, dipolar, and π‐π interactions that govern guest binding, which ...
Sebastian Michler, Simona Bassoli, Luisa Voigt, Makhily Diaby, Dariush Hinderberger, Frederik Haase   +5 more
wiley   +1 more source

Carbon‐Modified SnS2/g‐C3N4 S‐Scheme Heterostructure with Enhanced Interfacial Charge Transfer for Efficient Photocatalytic Reduction of Cr(VI) and 4‐Nitrophenol

Small, EarlyView.
The S‐scheme of SnS2‐C/g‐C3N4 heterostructure enables Photocatalytic Cr(VI) and 4‐NP reduction. ABSTRACT Hexavalent chromium (Cr(VI)) and 4‐nitrophenol (4‐NP) are persistent and highly toxic water pollutants that require efficient treatment under mild conditions. In this work, L‐cysteine‐derived carbon‐modified SnS2 (SnS2‐C) was prepared hydrothermally
Dhayanantha Prabu Jaihindh, Dinesh Kumar Dhanthala Chittibabu, Gabriella Janed Johana Sijabat, Saravanakumar Muthusamy, Jayaseelan Dhakshinamoorthy, Dang Manh Phuc, Tzu‐Ting Chang, Hsin‐Tsung Chen, Yi‐Feng Lin   +8 more
wiley   +1 more source

In vivo evaluation of different alterations of redox status by studying pharmacokinetics of nitroxides using magnetic resonance techniques

Redox Biology, 2016
Free radicals, particularly reactive oxygen species (ROS), are involved in various pathologies, injuries related to radiation, ischemia-reperfusion or ageing.
Goran Bačić, Aleksandra Pavićević, Fabienne Peyrot   +2 more
doaj   +1 more source