Results 201 to 210 of about 4,534 (262)

Formation of Polysulfides in Aqueous Solution

Environmental Letters, 1973
Abstract Polysulfides are found to be the reaction intermediates in the oxygenation of aqueous sulfide. The pH dependence of the reaction rates is directly related to the formation of polysulfides. In general, the peak of polysulfide concentrations fall within the range pH 7.0 ± 0.4, and decrease drastically in both acidic and alkaline solutions. Under
Kenneth Y Chen
exaly   +3 more sources

The link to polysulfides and their applications

Chemical Communications, 2021
Inverse vulcanisation converts sulfur into polysulfide via ring opening polymerisation followed by stabilisation using a variety of different crosslinkers. The linkers dictate the properties of the materials and lead to diverse applications.
Kun Woo Park, Erin M. Leitao
openaire   +2 more sources

Investigating of polysulfide and epoxy‐polysulfide copolymer curing

Materialwissenschaft und Werkstofftechnik, 2010
AbstractPolysulfide can be cured in various methods. In this work, the effect of various oxidative curing agents (manganese dioxide and para quinonedioxime) in presence of curing accelerator (Diphenylguanidine) on mechanical‐dynamical properties and cure time of polysulfide resin (G4) was investigated.
M. Abdouss, T. Farajpour, M. Derakhshani
openaire   +1 more source

The transulfuration of sulfinates by polysulfides

Experientia, 1962
E stato dimostrato che la transulfurazione che consegue alla incubazione dei solfinati con zolfo ed un composto tiolico e dovuta in parte alla produzione di un polisolfuro organico, formato dal tiolo e zolfo, ed in parte al polisolfuro inorganico, formato dalla decomposizione di quello organico. L'entita della transulfurazione prodotta direttamente dal
C, DE MARCO, M, COLETTA, D, CAVALLINI
openaire   +2 more sources

Modification of polysulfide sealant with polysulfide polythio‐urethane‐urea

Journal of Applied Polymer Science, 2007
AbstractWith a small amount of isocyanate‐terminated polysulfide (NCO‐PSF‐NCO) as additive, the commercial polysulfide‐based sealant had significant improvement in mechanical properties. The test results showed that 5% of NCO‐PSF‐NCO could help to rise 50% in the tensile strength and 27% in the ultimate elongation of the polysulfide sealant.
Yiwu Quan, Peng He, Baijie Zhou, Qingmin Chen   +3 more
openaire   +1 more source

Polysulfide Sealants

Rubber Chemistry and Technology, 1981
Abstract Sealants based on polysulfide liquid polymers are widely used in a number of applications. These sealants are solvent and chemical resistant, having good flexibility and adherence to many substrates such as steel, aluminum, glass, concrete, wood, etc.
N. D. Ghatge, S. P. Vernekar, S. V. Lonikar   +2 more
openaire   +1 more source

Polysulfides

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Polysulfide Complexes of Metals

1987
Publisher Summary Sulfide minerals were formed mostly hydrothermally from postmagnetic fluids; it appears remarkable that the formation of many ore deposits cannot be conclusively explained because of the very low solubility of the corresponding sulfide.
Müller, Achim, Diemann, Ekkehard
openaire   +2 more sources

Molybdenum carbide nanostructures for electrocatalytic polysulfide conversion in lithium–polysulfide batteries

Nanoscale Horizons, 2020
Introduction of appropriate cathode electrocatalysts in lithium–sulfur or lithium–polysulfide batteries can accelerate the polysulfide interconversion and suppress the shuttle effect.
Yunling Wu, Jun Deng, Yuan Zhou, Yang Huang, Yanguang Li   +4 more
openaire   +2 more sources