Results 31 to 40 of about 225,466 (357)

Efficient Palladium-Catalyzed Synthesis of 2-Aryl Propionic Acids

Molecules, 2020
A flexible two-step, one-pot procedure was developed to synthesize 2-aryl propionic acids including the anti-inflammatory drugs naproxen and flurbiprofen.
Helfried Neumann, Alexey G. Sergeev, Anke Spannenberg, Matthias Beller   +3 more
doaj   +1 more source

Effects of Molecular Iodine and 4-tert-Butylcatechol Radical Inhibitor on the Radical Polymerization of Styrene [PDF]

علوم و تکنولوژی پلیمر, 2017
The presence of molecular iodine was studied in relation the molecular weight and molecular weight distribution of polystyrene, produced by radical poly merization.
Mojtaba Bozorg, Mahdi Abdollahi, Mohammad Ali Semsarzadeh   +2 more
doaj   +1 more source

Linear Chains of Styrene and Methyl-Styrene Molecules and their Heterojunctions on Silicon: Theory and Experiment

, 2005
We report on the synthesis, STM imaging and theoretical studies of the structure, electronic structure and transport properties of linear chains of styrene and methyl-styrene molecules and their heterojunctions on hydrogen-terminated dimerized silicon ...
D. A. Papaconstantopoulos, George Kirczenow, J. E. Griffith, Paul G. Piva, Robert A. Wolkow, S. Datta, W. A. Hofer   +6 more
core   +1 more source

Iron-Catalyzed, Highly Regioselective Synthesis of alpha-Aryl Carboxylic Acids from Styrene Derivatives and CO2 [PDF]

, 2012
The iron-catalyzed hydrocarboxylation of aryl alkenes has been developed using a highly active bench-stable iron(II) precatalyst to give alpha-aryl carboxylic acids in excellent yields and with near-perfect regioselectivity. Using just 1 mol % FeCl2, bis(
Greenhalgh, Mark D., Thomas, Stephen P.
core   +1 more source

Synthesis and application of Fe3O4/PANIL nanocomposite as efficient adsorbent in the removal of styrene from waste water: Optimizing and modelling the process [PDF]

شیمی کاربردی روز, 2020
In this study, the application of adsorption process in the treatment of wastewater containing styrene has been evaluated and for optimizing process conditions, the surface response method (RSM) has been used.
ali jalalifar, Vahid Zare-Shahabadi, Soheil Sayyahi   +2 more
doaj   +1 more source

A Morphological Study of Dynamically Vulcanized Styrene-Ethylene-Butylene-Styrene/Styrene-Butylene-Styrene/MethylVinylSilicon Rubber Thermoplastic Elastomer

Polymers, 2022
In this work, we prepared thermoplastic silicone rubber (TPSiV) by dynamically vulcanizing different relative proportions of methyl vinyl silicone rubber (MVSR), styrene ethylene butene styrene block copolymer (SEBS), and styrene butadiene styrene block copolymer (SBS).
Zhao, Chunxu, Chen, Xiaohan, Chen, Xian
openaire   +2 more sources

Combined experimental and computational investigations of rhodium-catalysed C-H functionalisation of pyrazoles with alkenes [PDF]

, 2014
Detailed experimental and computational studies have been carried out on the oxidative coupling of the alkenes C(2)H(3)Y (Y=CO(2)Me (a), Ph (b), C(O)Me (c)) with 3-aryl-5-R-pyrazoles (R=Me (1 a), Ph (1 b), CF(3) (1 c)) using a [Rh(MeCN)(3)Cp*][PF(6)](2 ...
Algarra, Andrés G., Davies, David L., Khamker, Qudsia, Macgregor, Stuart A., McMullin, Claire L., Singh, Kuldip, Villa-Marcos, Barbara   +6 more
core   +1 more source

Deproteinized Natural Rubber Grafted with Polyacrylonitrile (PAN)/Polystirene (PS) and Degradation of its Mechanical Properties by Dimethyl Ether

International Journal of Technology, 2020
Dimethyl ether (DME) is a clean fuel that has moderate polarity, swells easily, and dissolves organic compounds. It has the ability to attack some sealing materials and plastic components because of its low viscosity. The modification of deproteinized
Tuti Indah Sari, Asep Handaya Saputra, Setijo Bismo, Dadi R. Maspanger   +3 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Synthesis, Characterization, and Application of Poly(Styrene-Co-Glycidyl Methacrylate) as Reactive Diluents to Epoxy Resin

International Journal of Technology
Anticorrosion coatings are specialized products designed to protect metal surfaces from costly and dangerous corrosion, acting as barriers against corrosive organisms.
Ainakulova Dana Tulegenkyzy, Puteri Sri Melor Megat-Yusoff, Khaldun Mohammad Al Azzam, Bekbayeva Lyazzat Kairatovna, Arpit Goyal, Ganjian Eshmaiel, El-sayed Negim, Moshera Samy, Balasubramani Ravindran   +8 more
doaj   +1 more source