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Relevant bibliographies by topics / Polysulfide

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Academic literature on the topic 'Polysulfide'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 March 2023

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Journal articles on the topic "Polysulfide"

1

Goifman, A., D. Ryzkov, J. Gun, A. Kamyshny, A. D. Modestov, and O. Lev. "Inorganic polysulfides’ quantitation by methyl iodide derivatization: dimethylpolysulfide formation potential." Water Science and Technology 49, no. 9 (May 1, 2004): 179–84. http://dx.doi.org/10.2166/wst.2004.0565.

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Inorganic polysulfides are important intermediates in the formation of dimethylpolysulfides and possibly other volatile sulfur compounds of environmental significance. Currently, direct determination of these ions in the concentration range of natural systems is practically impossible, particularly under oxic conditions. Polysulfide quantification by derivatization with methyl iodide or d6-methyl iodide is emerging as a valuable alternative method for studies of polysulfide formation in natural systems. This manuscript presents detailed studies aimed at the evaluation of this method. We determined the conversion of the inorganic polysulfides to dimethylpolysulfides by methylation with methyl iodide. Close to 100 per cent of the molar concentration of polysulfide salts were converted to organic polysulfides for very low concentrations of dissolved polysulfide solutions, but only a small recovery was obtained for high concentrations of polysulfide precursors or when the solubility limit was exceeded. The recovery of polysulfides based on the calculated dissolved polysulfide concentration exceeds 1,000 per cent for very low dissolved concentrations of polysulfides. This unexpected dependence is attributed to continuous inorganic polysulfide formation from hydrogen sulfide and sulfur precipitate concurrent with, and in fact driven by, the methylation process.

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Choi, Wonmun, and Tomoyuki Matsumura. "Synthesis of Cyclic Polysulfides and their Properties as Curing Agents." Rubber Chemistry and Technology 77, no. 2 (May 1, 2004): 380–90. http://dx.doi.org/10.5254/1.3547830.

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Abstract The reactions of dichloroalkanes and sodium tetra-sulfide (Na2S4) were carried out in a mixture of water and toluene to produce corresponding cyclic polysulfides and polysulfide polymer. The low molecular weights of cyclic sulfides were obtained by the reaction at 90 °C, while the high molecular weight of polysulfide polymer was obtained by the reaction at 50 °C. GPC chromatograms and Mass spectra revealed that the structures of cyclic polysulfide were 1:1, 2:2, and 3:3 adducts of dichloroalkane and sodium tetra-sulfide. The mechanical properties of vulcanized NR at 148 °C with cyclic sulfides were similar to that with sulfur. However, both tensile strength and elongation at break of vulcanized NR at 170 °C with cyclic sulfides are much higher than that with sulfur. The aging properties of vulcanized NR at 148 °C or 170 °C with cyclic polysulfides indicate better stability.

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Yu, Xingwen, and Arumugam Manthiram. "A class of polysulfide catholytes for lithium–sulfur batteries: energy density, cyclability, and voltage enhancement." Physical Chemistry Chemical Physics 17, no. 3 (2015): 2127–36. http://dx.doi.org/10.1039/c4cp04895d.

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Chauvin, Jean-Philippe R., Evan A. Haidasz, Markus Griesser, and Derek A. Pratt. "Polysulfide-1-oxides react with peroxyl radicals as quickly as hindered phenolic antioxidants and do so by a surprising concerted homolytic substitution." Chemical Science 7, no. 10 (2016): 6347–56. http://dx.doi.org/10.1039/c6sc01434h.

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Chang, Caiyun, and Xiong Pu. "Revisiting the positive roles of liquid polysulfides in alkali metal–sulfur electrochemistry: from electrolyte additives to active catholyte." Nanoscale 11, no. 45 (2019): 21595–621. http://dx.doi.org/10.1039/c9nr07416c.

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Yin, Shujun, Chenhui Wei, and Dongqiang Zhu. "Surface quinone-induced formation of aqueous reactive sulfur species controls pine wood biochar-mediated reductive dechlorination of hexachloroethane by sulfide." Environmental Science: Processes & Impacts 22, no. 9 (2020): 1898–907. http://dx.doi.org/10.1039/d0em00307g.

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Xu, Guiyin, Qing-bo Yan, Shitong Wang, Akihiro Kushima, Peng Bai, Kai Liu, Xiaogang Zhang, Zilong Tang, and Ju Li. "A thin multifunctional coating on a separator improves the cyclability and safety of lithium sulfur batteries." Chemical Science 8, no. 9 (2017): 6619–25. http://dx.doi.org/10.1039/c7sc01961k.

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Xu, Jing, Dawei Su, Wenxue Zhang, Weizhai Bao, and Guoxiu Wang. "A nitrogen–sulfur co-doped porous graphene matrix as a sulfur immobilizer for high performance lithium–sulfur batteries." Journal of Materials Chemistry A 4, no. 44 (2016): 17381–93. http://dx.doi.org/10.1039/c6ta05878g.

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The combination of the physical adsorption of lithium polysulfides onto porous graphene and the chemical binding of polysulfides to N and S sites promotes reversible Li₂S/polysulfide/S conversion, realizing high performance Li–S batteries with long cycle life and high-energy density.

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Dagnell, Markus, Qing Cheng, and Elias S. J. Arnér. "Qualitative Differences in Protection of PTP1B Activity by the Reductive Trx1 or TRP14 Enzyme Systems upon Oxidative Challenges with Polysulfides or H2O2 Together with Bicarbonate." Antioxidants 10, no. 1 (January 14, 2021): 111. http://dx.doi.org/10.3390/antiox10010111.

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Protein tyrosine phosphatases (PTPs) can be regulated by several redox-dependent mechanisms and control growth factor-activated receptor tyrosine kinase phosphorylation cascades. Reversible oxidation of PTPs is counteracted by reductive enzymes, including thioredoxin (Trx) and Trx-related protein of 14 kDa (TRP14), keeping PTPs in their reduced active states. Different modes of oxidative inactivation of PTPs concomitant with assessment of activating reduction have been little studied in direct comparative analyses. Determining PTP1B activities, we here compared the potency of inactivation by bicarbonate-assisted oxidation using H2O2 with that of polysulfide-mediated inactivation. Inactivation of pure PTP1B was about three times more efficient with polysulfides as compared to the combination of bicarbonate and H2O2. Bicarbonate alone had no effect on PTP1B, neither with nor without a combination with polysulfides, thus strengthening the notion that bicarbonate-assisted H2O2-mediated inactivation of PTP1B involves formation of peroxymonocarbonate. Furthermore, PTP1B was potently protected from polysulfide-mediated inactivation by either TRP14 or Trx1, in contrast to the inactivation by bicarbonate and H2O2. Comparing reductive activation of polysulfide-inactivated PTP1B with that of bicarbonate- and H2O2-treated enzyme, we found Trx1 to be more potent in reactivation than TRP14. Altogether we conclude that inactivation of PTP1B by polysulfides displays striking qualitative differences compared to that by H2O2 together with bicarbonate, also with regard to maintenance of PTP1B activity by either Trx1 or TRP14.

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Shah, Vaidik, and Yong Lak Joo. "Incorporation of Functionalized Graphene and Its Derivates into Electrolyte: A Facile Approach to Improve the Electrochemical Performance of Lithium-Sulfur Batteries." ECS Meeting Abstracts MA2022-01, no. 1 (July 7, 2022): 82. http://dx.doi.org/10.1149/ma2022-01182mtgabs.

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The impending global energy crisis and the severe environmental problems in the recent years has bolstered the research for sustainable electrochemical energy storage. With the lithium-ion technology reaching its theoretical limit, lithium sulfur (Li-S) batteries have garnered extensive attention owing to their ultrahigh theoretical capacity and the low-cost, Earth abundant and environmentally friendly nature of the sulfur cathode. Despite all the advantages, the development of Li-S technology is hindered by several inherent challenges namely, the large capacity drain due to the dissolution of the intermediate polysulfides in the electrolyte leading to polysulfide shuttling and low conductivity in the cell. To overcome these issues, graphene and its derivatives have been extensively explored to mitigate polysulfide shuttling and enhance conductivity in the cell. However, at present, most of this research is limited to cathode modification which despite improving capacity retention is unable to curb the deleterious impact of polysulfide shuttling once the polysulfides dissolve in the electrolyte. In this work, we have probed the impact of implementing graphene and its derivatives as additives to the Li-S electrolyte. We have extensively characterized various commercially available rGO and graphene samples to determine their morphology, functionalization, and other key ancillary properties such as defects and ionic resistivity and have studied their impact towards the electrochemical performance of the electrolyte-modified Li-S cell. Results showed a marked improvement in initial capacity of 1323 mAh/gs and a capacity retention of 83% at 0.2 C over 105 cycles with single layer graphene additive. Further, it was shown that increasing functionalization led to improved mitigation of polysulfide shuttling and about 20% higher capacity retention (than reference) over 105 cycles. The impact of different functional groups on graphene was also probed to compare their polysulfide shuttling mitigation capacity in the electrolyte. Overall, we successfully achieved superior electrochemical performance of the Li-S cell simply by addition of graphene to the electrolyte. It was successfully shown that functionalized graphene dispersed in the electrolyte can enhance polysulfide encapsulation and improve the ionic conductivity in the cell.

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Dissertations / Theses on the topic "Polysulfide"

1

Stephens, Ifan Erfyl Lester. "Polysulfide electrocatalysis at transition metal sulfides." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608910.

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Li, Zhijun. "Improving the kraft pulp yield with polysulfide and anthraquinone." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0006/MQ44022.pdf.

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Li, Zhijun 1965. "Improving the kraft pulp yield with polysulfide and anthraquinone." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20212.

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In this study, the reaction kinetics and mechanism of kraft pulping with polysulfide and anthraquinone(AQ) using black spruce wood were investigated.
In preliminary studies, the synergistic effect of polysulfide and AQ on pulp yield improvement was verified by different methods.
The identical kinetic cooking experiments were conducted for Kraft, Kraft-AQ, Polysulfide, and Polysulfide-AQ processes in the temperature range between 151 and 180ºC. It was found that the delignification rate of the PSAQ process was the fastest. The activation energies of delignification of Kraft, Kraft-AQ, Polysulfide, and Polysulfide-AQ processes were calculated as 141, 131, 142, and 131 kJ/mol, respectively. Based on obtained activation energies, the Vroom's H-factor was calculated and compared. It was also found that Kraft, Kraft-AQ, Polysulfide, and Polysulfide-AQ processes had similar activation energies for the carbohydrate degradation by 170, 174, 176, and 181 kJ/mol. Compared with the kraft process, the carbohydrate degradation rate of the PSAQ process was reduced. In addition, compared with other processes the PSAQ process had the best pulping selectivity.
A mechanism was proposed for the synergistic effect of polysulfide and anthraquinone on kraft pulp yield improvement based on the experimental evidence. It suggested that the synergy takes place at the beginning of heating-up period, polysulfide improves AQ penetration into wood, and therefore the maximum reduction of anthraquinone is reached earlier. The accelerated delignification helps the polysulfide to better access the hemicellulose, and that leads to more efficient stabilization of carbohydrates. In the meantime AQ retards the decomposition of polysulfide, and a higher concentration of polysulfide in the cooking liquor further prevents the degradation of carbohydrates. A redox cycle similar to that of AQ was proposed for the polysulfide.

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Robinson, Paul A. "Studies towards the synthesis of marine polysulfide natural products." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6379.

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Biologically active compounds isolated from marine sources have had increasing interest in recent years with significant research going into the discovery and isolation of novel marine polysulfide natural products. Varacin, probably the most widely studied marine polysulfide to date was the subject of much debated structure elucidation attempts, and more recently several successful synthetic approaches have been published. The work published aims to increase our understanding of marine polysulfide compounds existence in nature and determine the origins of their biological activity. (+)-Aplidium trisulfide which was isolated from Aplidium Sp. D in 1989 by Munro et al has been shown to exhibit in vitro antimicrobial, antileukemic and cytotoxic properties. These intriguing biological effects have led our work towards developing a novel synthetic route toward aplidium trisulfide by both chiral and racemic routes. Aplidium trisulfide is of special significance as it is very rare to isolate enantiomeric compounds from marine sources. Two other closely related marine alkaloids fasmerianamine A and B are also of synthetic interest to us due to their close resemblance to the structure of aplidium trisulfide. The fasmerianamines were isolated by Copp et al from the marine ascidian Hypsistozoa fasmeriana in 2001.

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Behm, Mårten. "Electrochemical generation of polysulfide liquor and sodium hydroxide from white liquor /." Stockholm, 1998. http://www.lib.kth.se/abs98/behm0220.pdf.

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Rys, Andrzej Z. "Polysulfide Chemistry : I. sulfuration of dienes, II. oxidation and related reactions." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38270.

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The use of polar solvents as activators in the sulfuration of dienes has been demonstrated. A mechanism of sulfuration with activated sulfur under these conditions was investigated. The identity of sulfur species involved in sulfuration was determined. The modeling of activated sulfur with various metallocene polysulfide catalysts in nonpolar solvents was also examined. The specifics of the metallocene polysulfide catalytic system were studied in detail.
The most efficient catalyst in the sulfuration of dienes, molybdocene tetrasulfide, became an object of oxidative studies. These studies were extended to molybdocene disulfide and tungstenocene tetrasulfide. The main products of the oxidation of metallocene tetrasulfides, 1-oxides, were thermally unstable and at room temperature rearranged to corresponding 2-oxides. The mechanism and factors controlling this rearrangement were investigated.
Oxidations of molybdocene tetrasulfide with excess of oxidant were also carried out. The unstable intermediates were identified. The rearrangement of highly oxidized molybdocene tetrasulfide 1,1,4,4-tetroxide yielding the intriguing ionic molybdocene disulfide dimer, was examined. Properties of the dimer, with emphasis on the deprotonation, were described.
Molybdocene disulfide and its oxide were treated separately with SO 2, H2S and finally with a mixture of both gases to evaluate the potential catalytic activity in the Claus process. The formation of two products resulting from the novel insertion of SO2 into the S-S bond, molybdocene trisulfide 2,2-dioxide and molybdocene bis(O-alkylthiosulfate) was observed. Both molybdocene disulfide and disulfide oxide reacted with the mixture of SO2 and H2S stoichiometrically. The reason for the lack of catalysis was discussed.

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Caddy, Mark. "Modified liquid polysulfide polymers : their preparation, characterisation, photocuring and potential photoapplications." Thesis, University of Warwick, 2001. http://wrap.warwick.ac.uk/3940/.

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Liquid polysulfide polymers (LPs) H(SCH2CH20CH20CH2CH2S)nH are of wide commercial importance in the sealants industry. Chemical oxidation of the mercaptan groups, by inorganic and peroxide catalysts, leads to the formation of durable, flexible and adhesive elastomers. Terminal modification of the prepolymers, by substituting a wide range of carbonylcontaining groups for the thiol protons, has led to the creation of photopolymerisable oligomers with certain of the desirable properties mentioned above. UV irradiation of all the modified polysulfides, which exist as viscous oils, resulted in the development of a solid elastomeric material with considerable powers of adhesion. The acylation process involves the addition of a slight excess of an acyl halide to the prepolymer in solution, followed by the addition of an amine to neutralise the HCI formed. This procedure has been adapted to react di- and polyfunctional termini with LPs to produce block copolymer polysulfides. When exposed to UV irradiation, the oligomers slowly photocrosslink, forming an insoluble elastomer. The increase in degree of polymerisation has been successfully monitored by 1H NMR spectroscopy; this was achieved by irradiating the oligomers in NMR tubes containing a thin capillary tube containing a deuterium-lock solvent. These new materials were characterised by IR, 1H and 13C NMR, GPC, viscometry and, particularly electrospray and FAB-mass spectrometry. FAB spectra have also been obtained for the first time for the parent polysulfide as well as the modified forms; these enable characterisation of the polysulfide backbone and its irregularities. Characterisation of these cured products has been made by hardness testing, solvent resistance, flexibility and tensometry. Lap shear measurements have been made of all of the functionalised cured polysulfides; adhesion is greatly enhanced by the addition of an adhesion promoter (optimum level 2%). All the systems slowly photopolymerise without sensitisers or additives, but the addition of radical photoinitiators shortens the cure time considerably. The modified LPs can be combined with commercially available polyurethane systems to make a fast curing photosystem yielding products with excellent adhesion and flexibility. Each of the modified LPs contains a carbonyl group, which has photoactive potential, thus excitation of the carbonyl group leads to an n->π* transition to form a reactive triplet state which then attacks another LP chain to crosslink the polysulfide. Monitoring of 1H NMR linewidths shows a gradual broadening of lines as 120 Hz polymerisation proceeds, reaching a plateau value of ΔH1/2=120 Hz, illustrating the elastomeric properties of the polysulfide. Addition of plasticisers eases the uniform spreading of the oligomers onto sheets before irradiating, which gives a potential application as a surface coating. Photoresist imaging agents are another potential application as the modified oligomers act as negative resists.

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Birembaut, Fabrice. "An investigation of the adhesion and ageing of polysulfide sealant systems." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395991.

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GODOY, RAFAEL FERREIRA. "HEXAVALENT CHROMIUM REMEDIATION USING CALCIUM POLYSULFIDE: STUDY CASE: RIO DE JANEIRO." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2014. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25019@1.

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Esta dissertação apresenta os resultados obtidos no processo de remediação de uma área contaminada por cromo hexavalente por meio da técnica de remediação química in situ (ISCR). A área de estudo localiza-se na cidade do Rio de Janeiro e foi ocupada por uma fábrica de vidros por cerca de quarenta anos e comprada para construção de condomínios residenciais. A área de estudo passou um processo de gerenciamento ambiental que contemplou diversos estudos ambientais para aquisição de dados e delimitar a contaminação, horizontal e verticalmente. O teste de bancada realizado com o reagente químico polissulfeto de cálcio demonstrou ser eficiente para reduzir as concentrações de cromo hexavalente em solo e água subterrânea. Com base nos dados adquiridos neste teste foi possível calcular a dose de injeção do polissulfeto de cálcio. Foram realizados setenta pontos de sondagem, pela técnica direct push, para injetar duzentos e cinquenta e dois mil e trinta litros de solução de polissulfeto de cálcio e água, sendo aproximadamente três mil e quinhentos litros por ponto de injeção. Os resultados após a injeção demonstraram que o polissulfeto de cálcio conseguiu remover o cromo hexavalente que estava adsorvido ao solo e reduziu a concentração de cromo hexavalente na água subterrânea entre quarenta e seis e sessenta e sete e noventa e nove e noventa e cinco por cento , após dezenove meses da injeção. Dessa forma, comprovou a eficiência deste reagente químico para remediação de áreas contaminadas por cromo hexavalente, assim como foi observado nos artigos técnicos de estudos de casos nos Estados Unidos e Europa.
This dissertation presents the results obtained in the remediation process remediation of a contaminated area by hexavalent chromium applying the technology in situ chemical remediation (ISCR). The study area is located in the Rio de Janeiro city and was occupied by a glass factory for forty years and purchased for construction of residential condominiums. This dissertation presents the results obtained in the remediation process remediation of a contaminated area by hexavalent chromium applying the technology in situ chemical remediation (ISCR). The study area is located in the Rio de Janeiro city and was occupied by a glass factory for forty years and purchased for construction of residential condominiums. Chromium is an important metal for the industry and is used in various products and processes, such as electroplating, leather treatment, pulp, wood preservation, and refractory manufacturing. The trivalent chromium is essential from a nutritional point of view, non-toxic and poorly absorbed in the body, acting in the maintenance of some functions. Cr(III) is the most common being found and occurs naturally, since the element Cr(VI) can occur naturally, but in low concentrations, if the groundwater has geochemical conditions the Cr (III) can be oxidize to Cr (VI). The hexavalent chromium is the most dangerous valence state and, according to ATSDR (two thousand and twelve), have greater mobility in the groundwater, being carcinogenic by inhalation of high doses of soluble chromate salts. The mobility of hexavalent chromium is high in soil and groundwater because it is not adsorbed by the soil in that valence state, on the other hand when it is in trivalent form is strongly adsorbed by the soil, forming insoluble precipitates, having low mobility in soil and groundwater. The hexavalent chromium remediation by in situ chemical reduction using calcium polysulfide has been the subject of several field studies documented in the literature, both for soil and groundwater from the Chromite Ore Processing Residue (COPR) (Storch, et al., two thousand and two; Graham, et al., two thousand and six ; Charboneau, et al., two thousand and six ; Wazne, et al., two thousand seven a; Wazne, et al., two thousand seven b; Chrysochoou, et al., two thousand and ten ; Chrysochoou & Ting, two thousand and eleven ; Pakzadeh & Batista, two thousand and eleven ; Chrysochoou, et al., two thousand and twelve ). Calcium polysulfide is a fertilizer to soil and commercially available and has been used in some remediation studies cases for reducing hexavalent chromium in soil and groundwater. Being commercially available and used as fertilizer, it is a relatively cheap chemical reagent in comparison with other chemical compounds exclusively developed for this purpose. The stoichiometric demand and the chemical kinetics of the reduction of Cr (VI) by the calcium polysulfide in aqueous solution was studied by Graham et al. (two thousand and six) from the chromite ore processing residue (COPR). With this study it was reported that a molar ratio of a point sixty-six is required (close to the theoretical value of one point five) and a first-order kinetics with an initial concentration of twenty-six eight point mg/L and pH of the CPS solution around eleven point five, with the presence of oxygen. Thus, the hexavalent chromium is reduced to chromium hydroxide, slightly water soluble compound which is precipitated to the soil. The trivalent chromium has low solubility, toxicity, mobility, reactivity and is considered stable. There are various application techniques of chemical reagents in the underground environment, and choosing the most appropriate method for each area depends on the type of contaminant, geological environment, groundwater and surface interference, depth, thickness and size of the contaminated area. As described by Suthersan (mil novecentos ninety-six), the injection of chemical reagents has to achieve two objectives: (one) creating and maintaining an ideal redox environment and other pa

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Fan, Li. "ELECTRODEPOSITION OF SULFIDE-CONTAINING THIN FILMS, AND THEIR APPLICATION TO ELECTROCHEMICAL SYSTEMS." OpenSIUC, 2019. https://opensiuc.lib.siu.edu/theses/2495.

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Books on the topic "Polysulfide"

1

S, Minkin Vladimir, and Deberdeev Timur R, eds. Polysulfide oligomer sealants: Synthesis, properties, and applications. Oakville, ON, Canada: Apple Academic Press, 2015.

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Lowe, George Bernard. The durability of adhesion of polysulfide sealants to glass. Leicester: De MontfortUniversity, 1992.

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C, Bjorkman Del Ray, and United States. National Aeronautics and Space Administration., eds. Flight 20 (STS-45) polysulfide gas path investigation: Final report. Brigham City, UT: Thiokol Corp., Space Operations, 1992.

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C, Bjorkman Del Ray, and United States. National Aeronautics and Space Administration., eds. Flight 20 (STS-45) polysulfide gas path investigation: Final report. Brigham City, UT: Thiokol Corp., Space Operations, 1992.

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Evans, K. B. Evaluation of a metering, mixing, and dispensing system for mixing polysulfide adhesive: Final report. Brigham City, Utah: Morton Thiokol, Inc., Aerospace Group, 1989.

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Mahon, Andrea. Linear polysulfides: their characterisation and degradation pathways. [s.l.]: typescript, 1996.

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Lucke, H. ALIPS, aliphatic polysulfides: Monograph of an elastomer : history, economy, chemistry, technology, applications, testing/standardization/safety of aliphatic polysulfides. Basel: Hüthig & Wepf Verlag, 1994.

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Tilstra, L. Microbial degradation of polysulfides and insights into their possible occurrence in coal. S.l: s.n, 1990.

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J, Bowles Kenneth, Vannucci Raymond D, and United States. National Aeronautics and Space Administration., eds. Styrene-terminated polysulfone oligomers as matrix material for graphite reinforced composites: An initial study. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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Garcia, Dana. Styrene-terminated polysulfone oligomers as matrix material for graphite reinforced composites: An initial study. [Washington, DC]: National Aeronautics and Space Administration, 1987.

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Book chapters on the topic "Polysulfide"

1

Gooch, Jan W. "Polysulfide." In Encyclopedic Dictionary of Polymers, 572. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9223.

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Gooch, Jan W. "Polysulfide Rubber." In Encyclopedic Dictionary of Polymers, 572. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9224.

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Krause, Ronald A., Adrienne Wickenden Kozlowski, James L. Cronin, and Rosario Del Pilar Neira. "3. Polysulfide Chelates." In Inorganic Syntheses, 12–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132524.ch3.

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Panek, Julian R. "Polysulfide Sealants and Adhesives." In Handbook of Adhesives, 307–15. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0671-9_16.

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Peter, L. B. "Di- and Polysulfide Ions." In Inorganic Reactions and Methods, 28. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145197.ch35.

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Paul, D. Brenton, Peter J. Hanhela, and Robert H. E. Huang. "Effects of Environment on Performance of Polysulfide Sealants." In Adhesives, Sealants, and Coatings for Space and Harsh Environments, 269–80. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-1047-1_25.

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Wagner, R. E., and A. Mandelis. "Characterization of n-CdS/Polysulfide Photoelectrochemical Cells via Photothermal Deflection and Photoaction Spectroscopies." In Photoacoustic and Photothermal Phenomena, 41–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-540-48181-2_9.

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M. Patel, Manu U., and Robert Dominko. "Comparative Study of Polysulfide Encapsulation in The Different Carbons Performed By Analytical Tools." In Ceramic Materials for Energy Applications V, 85–100. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119211709.ch8.

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Nicholas, Paul P. "The Scission of Polysulfide Cross-Links in Rubber Particles through Phase-Transfer Catalysis." In ACS Symposium Series, 155–68. Washington, DC: American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0326.ch013.

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LaLonde, Robert T. "Polysulfide Reactions in the Formation of Organosulfur and Other Organic Compounds in the Geosphere." In Geochemistry of Sulfur in Fossil Fuels, 68–82. Washington, DC: American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0429.ch004.

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Conference papers on the topic "Polysulfide"

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Dive, Aniruddha, Ramiro Gonzalez, and Soumik Banerjee. "Graphene/Sulfur and Graphene Oxide/Sulfur Composite Cathodes for High Performance Li-S Batteries: A Molecular Dynamics Study." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67590.

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Lithium – sulfur (Li-S) battery, with theoretical capacity (∼1675 mAh/g) and energy density comparable to that of gasoline, is a promising technology meeting the demands of next-generation electric vehicles. However, the Li-S battery hasn’t been able to reach the theoretically predicted capacity due to several limitations, which include low electrical conductivity of pure sulfur cathode and loss of active material due to dissolution of intermediate polysulfides from the cathode during repetitive charge – discharge cycling referred commonly as “polysulfide shuttle”. Graphene/Graphene oxide (GO) are being explored as cathodes/cathode supports for Li-S batteries to alleviate these problems. We have employed molecular dynamics simulations to calculate the density distributions of polysulfides (S82−) in dimethoxy ethane (DME) – 2, 4 – dioxalane (DOL) electrolyte (1:1 v/v) in the vicinity of different graphene and GO structures, in order to study the impact of hydroxyl functional groups in GO on anchoring polysulfides. Density distribution of polysulfides provides valuable insight on the role of functional groups in successful anchoring of polysulfides onto the GO cathode supports structures.

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Bekturganov, Nuraly. "PHYSICAL-CHEMICAL REGULARITIES OF CALCIUM POLYSULFIDE SYNTHESIS." In 16th International Multidisciplinary Scientific GeoConference SGEM2016. Stef92 Technology, 2016. http://dx.doi.org/10.5593/sgem2016/b12/s04.147.

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Flynn, Aiden, Daniel Taggert, Josh Johnston, Mitch Christensen, Mykola Makowski, Robyn Moss, Rushi Kathiria, Sai Bhavaraju, and Steve Hughes. "Novel Sodium – Polysulfide Flow Battery Grid-scale Energy Storage Technology." In 2022 IEEE Electrical Energy Storage Application and Technologies Conference (EESAT). IEEE, 2022. http://dx.doi.org/10.1109/eesat55007.2022.9998026.

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Takahashi, Yui. "Phylogenetic Characteristics of Sulfate-reducing Bacteria Having Ability to Reduce Polysulfide." In WATER DYANMICS: 3rd International Workshop on Water Dynamics. AIP, 2006. http://dx.doi.org/10.1063/1.2207108.

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Song, Bo, Fan Wu, Kyoung-sik Moon, and C. P. Wong. "Formulation and Processing of Conductive Polysulfide Sealants for Automotive and Aerospace Applications." In 2019 IEEE 69th Electronic Components and Technology Conference (ECTC). IEEE, 2019. http://dx.doi.org/10.1109/ectc.2019.00031.

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Baharun, N. N. S., M. A. Mingsukang, M. H. Buraidah, H. J. Woo, and A. K. Arof. "Electrical Properties of Plasticized Sodium-Carboxymethylcellulose (NaCMC) Based Polysulfide Solid Polymer Electrolyte." In 2018 20th International Conference on Transparent Optical Networks (ICTON). IEEE, 2018. http://dx.doi.org/10.1109/icton.2018.8473830.

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Priha, E. "25. Health and Environmental Aspects of PCB Contamination Due to Old Polysulfide Sealants." In AIHce 2003. AIHA, 2003. http://dx.doi.org/10.3320/1.2757911.

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Mateša, Sarah, Milan Čanković, Suzana Šegota, and Irena Ciglenečki-Jušić. "Polysulfide dynamics in a marine euxinic environment (Rogoznica Lake, Croatia); importance of anoxygenic photosynthesis." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.3700.

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Dinitz, Arthur M., and Michael S. Stenko. "The Successful Use of Thin Polysulfide Epoxy Polymer Concrete Overlays on Concrete and Steel Orthotropic Bridge Decks." In Structures Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41130(369)49.

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Foss, Dyan L., and Briant L. Charboneau. "Groundwater Remediation of Hexavalent Chromium Along the Columbia River at the Hanford Site in Washington State, USA." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59030.

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The U.S. Department of Energy Hanford Site, formerly used for nuclear weapons production, encompasses 1500 square kilometers in southeast Washington State along the Columbia River. A principle threat to the river are the groundwater plumes of hexavalent chromium (Cr(VI)), which affect approximately 9.8 square kilometers, and 4.1 kilometers of shoreline. Cleanup goals are to stop Cr(VI) from entering the river by the end of 2012 and remediate the groundwater plumes to the drinking water standards by the end of 2020. Five groundwater pump-and-treat systems are currently in operation for the remediation of Cr(VI). Since the 1990s, over 13.6 billion L of groundwater have been treated; over 1,435 kg of Cr(VI) have been removed. This paper describes the unique aspects of the site, its environmental setting, hydrogeology, groundwater-river interface, riverine hydraulic effects, remediation activities completed to date, a summary of the current and proposed pump-and-treat operations, the in situ redox manipulation barrier, and the effectiveness of passive barriers, resins, and treatability testing results of calcium polysulfide, biostimulation, and electrocoagulation, currently under evaluation.

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Reports on the topic "Polysulfide"

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Meihui Wang. The electrical conductivity of sodium polysulfide melts. Office of Scientific and Technical Information (OSTI), June 1992. http://dx.doi.org/10.2172/7243774.

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Wang, Meihui. The electrical conductivity of sodium polysulfide melts. Office of Scientific and Technical Information (OSTI), June 1992. http://dx.doi.org/10.2172/10181806.

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Celina, Mathias C., Nicholas Henry Giron, and Adam Quintana. Aging Behavior and Performance Projections for a Polysulfide Elastomer. Office of Scientific and Technical Information (OSTI), May 2015. http://dx.doi.org/10.2172/1183359.

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Marschilok, Amy, Esther Takeuchi, and Kenneth Takeuchi. Sulfur Loaded MS₂ Barrier for Control of Polysulfide Shuttling in Lithium Sulfur Batteries (Final Report). Office of Scientific and Technical Information (OSTI), June 2020. http://dx.doi.org/10.2172/1635155.

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Gregg, H., C. Harvey, R. Maxwell, and A. Vance. Micro-Compatibility Testing of Polysulfone. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/15014596.

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Ticknor, Christopher. Product equation of state for polysulfone. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1222693.

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Low cost hydrogen/novel membranes technology for hydrogen separation from synthesis gas, Phase 1. [Palladium-silver/poly(etherimide), polysulfone/poly(dimethylsiloxane)/poly(ether-esteramide)composite membranes]. Office of Scientific and Technical Information (OSTI), January 1987. http://dx.doi.org/10.2172/5045913.

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