Results 21 to 30 of about 23,237 (180)

Polyimide processing additives [PDF]

, 1992
A process for preparing polyimides having enhanced melt flow properties is described. The process consists of heating a mixture of a high molecular weight poly-(amic acid) or polyimide with a low molecular weight amic acid or imide additive in the range ...
Burks, Harold D., Fletcher, James C., Pratt, J. Richard, St.clair, Terry L., Stoakley, Diane M.   +4 more
core   +1 more source

o‐Terphenyl‐Based Family of Conjugated Macrocycles: Selective Recognition of Phenylalanine in Water and Interaction With Insulin

Angewandte Chemie International Edition, EarlyView.
This study presents the synthesis and binding properties of a new family of o‐terphenyl‐based macrocycles, TP[n] (n = 2‐8). The trimer variant efficiently binds phenylalanine in water with a 10‐fold selectivity compared to other amino acids and aromatic neurotransmitters.
Swapnil Ghule, Sayan Sarkar, Maria Eugenia Pérez‐Ojeda Rodriguez, Mark Spector, Frank Hampel, Evgeny A. Kataev   +5 more
wiley   +1 more source

Novel Fmoc-Polyamino Acids for Solid-Phase Synthesis of Defined Polyamidoamines [PDF]

, 2011
A versatile solid-phase approach to sequence-defined polyamidoamines was developed. Four different Fmoc-polyamino acid building blocks were synthesized by selective protection of symmetrical oligoethylenimine precursors followed by introduction of a ...
Badgujar, Naresh, Schaffert, David, Wagner, Ernst   +2 more
core   +1 more source

Adsorption Characteristics and Mechanisms of Dibutyl Phthalate on Nanomaterials

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Dibutyl phthalate (DBP) is a widely used plasticizer whose environmental release poses significant risks to ecosystems and human health. This study systematically investigated DBP adsorption on three common nanomaterials—titanium dioxide nanoparticles (n‐TiO2), multiwalled carbon nanotubes (MWCNTs), and carboxylated MWCNTs (MWCNTs‐COOH)—using ...
Ying Wang, Haiyue Chen, Hongbao Liang, Hongwu Liang   +3 more
wiley   +1 more source

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

Stabilized unsaturated polyesters [PDF]

, 1985
An unsaturated polyester, such as propylene glycolmaleic acid phthalic acid prepolymer dissolved in styrene is interpolymerized with an ultraviolet absorber and/or an antioxidant.
Borsig, E., Vogl, O.
core   +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

Effects of mutations in the helix G region of horseradish peroxidase [PDF]

, 2008
Horseradish peroxidase (HRP) has long attracted intense research interest and is used in many biotechnological fields, including diagnostics, biosensors and biocatalysis.
Barry J. Ryan, Batra, Chakrabarti, Chang, Chattopadhyay, Ciarán Ó'Fágáin, Coates, Dai, Dunford, French, Gajhede, Garcia, Gonera, Gorman, Grigorenko, Guex, Hakamada, Haque, Hassani, Howes, Ignatenko, Jager, Kaposi, Khmelnitsky, Krowarsch, Kwon, Lei, Lin, Lipovsek, Liu, Liu, Machado, Miland, Miland, Mogharrab, Moosavi-Movahedi, Morawski, Nagano, Numata, O'Brien, O'Brien, Orlova, Ozaki, Pina, Priori, Ryan, Ryan, Ryan, Ryu, Sambrook, Santucci, Savenkova, Smeller, Smith, Tams, Tanaka, Tanaka, Ugarova, Urrutigoity, Wang   +59 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

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