Results 51 to 60 of about 15,169 (208)

Porphyrin‐Geländer–Helical Conjugated Banister Type Porphyrin Dyads

Chemistry – A European Journal, EarlyView.
Porphyrin arrays go chiral–A porphyrin Geländer macrocycle represents the intriguing prototype architecture of helically chiral butadiyne‐linked porphyrin arrays. This study combines synthetic, spectroscopic, and computational methods to shed light on its structure, chiroptical properties, and tunability, highlighting its promise for advancing ...
Joël F. Keller, Adriano D'Addio, Marcel Mayor   +2 more
wiley   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Polymeric foams from cross-linkable poly-N-ary lenebenzimidazoles [PDF]

, 1978
Foamed cross-linked poly-N-arylenebinzimidazoles are prepared by mixing an organic tetraamine and an ortho substituted aromatic dicarboxylic acid anhydride in the presence of a blowing agent, and then heating the prepolymer to a temperature sufficient to
Delano, C. B., Harrison, E. S., Riccitello, S. R.   +2 more
core   +1 more source

Biomass‐derived hydrochars as eco‐friendly adsorbents for wastewater treatment applications

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Emerging organic pollutants (EOPs), such as diethyl phthalate (DEP), bisphenol A (BPA), and methylene blue (MB), are only partially removed in conventional wastewater treatment plants. This study assesses hydrochars produced by hydrothermal carbonization (HTC) of spruce bark (SB), vine shoots (VSs), and wheat straw (WSs) for removing three ...
Emanuel Gheorghita Armanu, Sara Ribeirinho‐Soares, Christian Eberlein, Hermann J. Heipieper, Irina Volf, Olga C. Nunes, Olívia Salomé G. P. Soares   +6 more
wiley   +1 more source

Production of PVC-films with specific properties [PDF]

Нанотехнологии в строительстве, 2018
When developing polymeric materials with specified properties special compounds such as fungicides are used alongside traditional chemical additives (plasticizers).
MASKOVA Albina Rafitovna, AMINOVA Guliya Karamovna, FAIZULLINA Svetlana Radikovna, FAIZULLINA Galiya Fatyhovna, MAZITOVA Aliya Karamovna   +4 more
doaj   +1 more source

Canned Foods: Evolution, Benefits, and Health Implications of Modern Packaging

Food Safety and Health, EarlyView.
This graphical abstract presents a concise visual overview of canned food technology, highlighting its historical evolution, key benefits, and associated health risks. It integrates timelines, icons, and summary points to clearly communicate advancements in preservation, consumer advantages, and potential safety concerns in a single schematic ...
Shaswati Rout, Priyadarsini Sahoo, Anuprita Ray, Shuvendu Shekhar Mohapatra   +3 more
wiley   +1 more source

Very Strong Hydrogen Bond in Nitrophthalic Cocrystals

Molecules
This work presents the studies of a very strong hydrogen bond (VSHB) in biologically active phthalic acids. Research on VSHB comes topical due to its participation in many biological processes.
Kinga Jóźwiak, Aneta Jezierska, Jarosław J. Panek, Andrzej Kochel, Barbara Łydżba-Kopczyńska, Aleksander Filarowski   +5 more
doaj   +1 more source

Thermal-Desorption Proton-Transfer-Reaction Quadruple-Interface Time-of-Flight Mass Spectrometry: Online Analysis of Organic Aerosol Using Single-Component Particles

Aerosol and Air Quality Research, 2022
A proton transfer reaction-quadrupole interface time-of-flight mass spectrometer was combined with a hand-made thermal desorption (TD) instrument for real-time analysis of organic aerosol particles.
Kei Sato, Sathiyamurthi Ramasamy, Satoshi Inomata, Yu Morino, Toshihide Hikida, Akio Shimono   +5 more
doaj   +1 more source

Metathesis‐Sourced Epoxides in Ring‐Opening Copolymerization: Selective Access to Degradable Polythioesters

Macromolecular Rapid Communications, EarlyView.
Metathesis‐derived cyclopentene epoxides enable strictly alternating, scrambling‐free ring‐opening copolymerization with phthalic thioanhydride, yielding well‐defined polythioesters with molecular weights up to ∼38 kg/mol. Their performance extends to oxygen‐based anhydrides and selective terpolymerizations. Direct comparisons with all‐oxygen analogues
Niracha Tangyen, Bhargav R. Manjunatha, Valerio D'Elia, Alex J. Plajer   +3 more
wiley   +1 more source

The benzene polycarboxylic acid (BPCA) pattern of wood pyrolyzed between 200°C and 1000°C [PDF]

, 2010
Environmental charcoals represent a poorly defined part of the black carbon (BC) combustion continuum and may differ widely in their chemical and physical properties, depending on combustion conditions and source material. The benzene polycarboxylic acid
Alexis, Antal, Baldock, Braadbaart, Brodowski, Brodowski, Brown, Bruun, Chen, Czimczik, Dittmar, Gimeno-Garcia, Glaser, Goldberg, Gundale, Gustafsson, Gustafsson, Hammes, Hammes, Hammes, Hammes, Kaal, Kaal, Keiluweit, Knicker, Kuo, Masiello, Maximilian P.W. Schneider, McBeath, Michael Hilf, Michael W.I. Schmidt, Nguyen, Nguyen, Nishimiya, Pyne, Rodionov, Schmidt, Shafizadeh, Simoneit, Simpson, Simpson, Smernik, Ulrich F. Vogt, Wolbach, Zimmerman, Ziolkowski   +45 more
core   +1 more source