Results 51 to 60 of about 10,564 (229)

A simple and efficient synthesis protocol for sulfonation of nitrobenzene under solvent-free conditions via a microreactor

, 2012
A simple and efficient method for the sulfonation of nitrobenzene using SO3 as the sulfonating agent in a microreactor was developed and conducted in this work. The reaction enthalpy was determined using a microreactor-based calorimeter.
Chen, Guangwen, 陈光文, Chen, Yizheng, Su, Yuanhai, Jiao, Fengjun   +4 more
core   +1 more source

Characterization of a Sulfonated Polycarbonate Resistive Humidity Sensor

Sensors, 2013
In this work; resistive moisture sensors were obtained by dip coating sulfonated polycarbonate (SPC) onto silver interdigitated electrodes. Commercial polycarbonate was sulfonated with acetyl sulphate at two different sulfonation degrees corresponding to
Claudio L. Donnici, Henrique Oliveira, Rero M. Rubinger, Hallen D. R. Calado, Carla P. L. Rubinger   +4 more
doaj   +1 more source

Encapsulation of Linear and Cyclic Alkanes in Water Within a Dimeric Deep‐Cavity Sulfonatocalix[4]arene Capsule

Chemistry – A European Journal, EarlyView.
Captured in water. A tetrasulfonated deep‐cavity calix[4]arene encapsulates linear and cyclic alkanes, as well as benzene and hexafluorobenzene, in water by forming a self‐assembled dimeric capsule. The binding affinity is guest size‐dependent. For linear alkanes, the affinity peaks at n‐hexane, while cyclooctane is the most strongly bound cycloalkane.
Nico Schneider, Sebastiano Casalino, Aldrik H. Velders, Rosa M. Gomila, Antonio Frontera, Stefan Kubik   +5 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

Sulfonated polyaniline: influence of sulfonation routes on its thermal and structural characteristics

Materials Research, 2011
In order to study the influence of different sulfonation routes on its thermal and structural properties sulfonated polyaniline (SPAni) was prepared. FT-IR revealed that the formation of PAni salt or ring sulfonation depends on the route.
Luis Claudio Mendes, Ana Paula Santiago Falco, Magali Silveira Pinho, Priscila Oliveira Marques   +3 more
doaj  

Dominant Lithium‐Ion Conduction and Desolvation Regulation Enabled by Lithiated Monodisperse Nanospheres Composite Separator for High‐Nickel Lithium Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
To match high‐nickel lithium batteries, a composite separator is designed using a sulfonation‐lithiation nanosphere coating modification strategy. The composite separator can enhance the selectivity of lithium‐ion transport, accelerate Li+‐desolvation, and capture Ni, Co, and Mn ions.
Jin Gong, Guigang Wang, Xiaoyan Feng, Tingfeng Xiao, Lishun Dai, Qingfu Zhang, Shuyu Gao, Jingchao Chai, Yun Zheng, Li Yang, Ming Xie, Wei Zhang, Zhihong Liu   +12 more
wiley   +1 more source

Mechanism and kinetics of poly(ether ether ketone) (PEEK) sulfonation in concentrated sulfuric acid at room temperature. Part 2. Quantitative interpretation of model compound sulfonation

, 2001
The mechanism and kinetics of sulfonation of two PEEK model compounds in concentrated sulfuric acid were studied. The first model compound (monomer) is representative of a PEEK repeat unit. The second one is a PEEK dimer. Because both model compounds are
Godard, Pierre, Daoust, Daniel, Devaux, Jacques   +2 more
core   +1 more source

Sulfonation of waste cassava to produce superabsorbent. [PDF]

, 2009
Onggok is a waste product of tapioca industries which has low economical value. The aim of this research is to find a way to increase the added value of onggok by transforming it into a superabsorbent.
Ramadhani, Primasti
core   +1 more source

Synergistic Molecular Modulation of ππ Stacking for High‐Performance Pitch‐Derived Hard Carbon Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A synergistic molecular strategy is demonstrated to disrupt intrinsic ππ stacking in pitch, boosting 6‐fold sulfonation, yielding a hard carbon with 0.371 nm interlayer spacing and maximized closed pores, and achieving a high reversible capacity, remarkable rate capability (205.6 mAh g−1 at 2 A g−1) and cyclic stability.
Xiang Wang, Yangyang Chu, Shuaipeng Liu, Ruyao Zhang, Zeyu Zhu, Qiang Li, Weixiang Li, Ya‐Xia Yin, Sailong Xu   +8 more
wiley   +1 more source

Greener methods for batch sulfonation

, 2013
Presented a seminar on 'Greener methods of batch sulfonation', as a part of Masters' degree in Green Technology at Institute of Chemical Technology, Mumbai, India.
Anuja Sawant (457009)
core   +1 more source