Results 61 to 70 of about 10,564 (229)

5-Phenyl-10,15,20-Tris(4-sulfonatophenyl)porphyrin: Synthesis, Catalysis, and Structural Studies

Molecules, 2018
A convenient protocol for the preparation of 5-phenyl-10,15,20-tris(4-sulfonatophenyl)porphyrin, a water-soluble porphyrin with unique aggregation properties, is described. The procedure relies on the one-pot reductive deamination of 5-(4-aminophenyl)-10,
Aitor Arlegui, Zoubir El-Hachemi, Joaquim Crusats, Albert Moyano   +3 more
doaj   +1 more source

Sulfonated‐TiO2 Nanorod–Reinforced PEO Composite Solid Electrolytes for High‐Voltage Solid‐State Lithium Metal Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces a high‐performance composite solid electrolyte (CSE) utilizing actively sulfonated TiO2 (STiO2) nanorods within a PEO matrix. The 1D ceramic network chemically promotes LiTFSI dissociation and creates continuous fast‐hopping pathways for Li+ ions, delivering an ionic conductivity of 1.5 × 10−4 S cm−1 at room temperature, an ...
Soukaina Bakkardouch, Souhaib Abouricha, Noha Sabi, Aritra Rakshit, Hagar K. Hassan, Hasna Aziam, Nouredine Oueldna, Hicham Ben Youcef   +7 more
wiley   +1 more source

Synthesis in pilot plant scale and physical properties of sulfonated polystyrene

Journal of the Brazilian Chemical Society, 2003
The homogenous sulfonation of polystyrene was developed in a pilot plant scale producing polymers with different sulfonation degrees (18 to 22 mole % of sulfonated styrene units).
Martins Cristiane R., Ruggeri Giacommo, De Paoli Marco-A.   +2 more
doaj  

Lignocellulosic Triboelectric Materials for Energy Harvesting and Emerging Applications: A Review on Lignin‐Molecular Engineering toward Improved Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Contrasting sustainable biomass with depleting petroleum resources, this review charts the evolutionary timeline of lignin‐based TENGs. We systematically evaluate their fundamental mechanisms, enhancement strategies, and applications in green self‐powered electronics.
Yuxin Yang, Boyu Du, Yuwen Wang, Tian Tang, Yuxuan Xie, Jiajun Zhang, Yajun Zhang, Jingyu Xu, Xing Wang, Chuanyin Xiong   +9 more
wiley   +1 more source

Sulfonation of polystyrene: toward the "ideal" polyelectrolyte

, 2013
International audienceABSTRACT Sulfonation of narrow polydispersity polystyrene, PS, standards remains the method of choice for generating polystyrene sulfonate, PSS, samples with defined composition.
Reisch, Andreas, Markarian, Marie, Coughlin, Jessica, Schlenoff, Joseph   +3 more
core   +1 more source

Rapid transformation of sulfinate salts into sulfonates promoted by a hypervalent iodine(III) reagent

Beilstein Journal of Organic Chemistry, 2018
An alternative method for forming sulfonates through hypervalent iodine(III) reagent-mediated oxidation of sodium sulfinates has been developed. This transformation involves trapping reactive sulfonium species using alcohols. With additional optimization
Elsa Deruer, Vincent Hamel, Samuel Blais, Sylvain Canesi   +3 more
doaj   +1 more source

Molybdooxaziridine Catalysis: Synthesis of α‐Hydroxysulfones From Styrenes Through an ATRA Process

European Journal of Organic Chemistry, EarlyView.
This work has discovered that molybdooxaziridine catalysts promote the hydroxysulfonation of substituted α‐methyl‐styrenes using N‐Ts‐hydroxylamine as the nitrogen source. An atom‐transfer‐radical‐addition mechanism involving the stepwise addition of Ts and hydroxy radicals takes place.
Alyssa N. Singer, Gustavo Moura‐Letts
wiley   +1 more source

Azeotropic sulfonation of chlorobenzene [PDF]

, 1957
A miss of experiments were conducted to determine the efficiency of the sulfonation of chlorobenzene by equilmolar proportions of sulfuric acid in various organic media her azeotropic conditions. The efficiency of the system wan show to be tins dependent,
Lensi, Peter Norman
core   +1 more source

Revolutionizing Biodiesel Synthesis: Kinetic and Thermodynamic Insights with Carbonized Doum-Shell Catalyst [PDF]

Trends in Ecological and Indoor Environmental Engineering
Background: Conventional methods of biodiesel (FAME) synthesis often involve transesterification processes that are catalysed by homogeneous catalysts, which present challenges in terms of catalyst recovery, environmental impact, and production cost ...
Abdulhalim Musa Abubakar, Haruna Mavakumba Kefas, Yusufu Luka, Jimzibea Jehu Kawuwa   +3 more
doaj   +1 more source

Influence of sulfonation degree and deposition technique on the electrical and morphological properties of sulfonated polystyrene thin films

Polymer International, EarlyView.
Sulfonated polystyrene films with different degrees of sulfonation were fabricated using Langmuir–Schaefer and drop‐casting techniques. Both the deposition method and sulfonation level strongly affect film morphology and electrical response, governing the performance of these materials as ammonia gas sensors.
Maria Eduarda RS Medina, Jéssyka C Bittencourt, Vinicius JRO Patzer, Marcelo S Borro, Antônio JF de Carvalho, Debora T Balogh, Roger C Hiorns, Deuber LS Agostini, Clarissa A Olivati   +8 more
wiley   +1 more source