scholarly journals VULCANIZATION WITH SOME ORGANIC POLYSULFIDES

1969 ◽  
Vol 42 (8) ◽  
pp. 587-591 ◽  
Author(s):  
J. Furukawa ◽  
S. Yamashita ◽  
M. Ueno ◽  
K. Koda
Keyword(s):  
Organic Polysulfides

Degradation mechanisms of lithium sulfide (Li2S) composite cathode in carbonate electrolyte and improvement by increasing electrolyte concentration

2021 ◽  
Vol 5 (6) ◽  
pp. 1714-1726
Author(s):  
Hidehisa Mokudai ◽  
Tomonari Takeuchi ◽  
Hikari Sakaebe ◽  
Hironori Kobayashi ◽  
Eiichiro Matsubara
Keyword(s):  
Electrolyte Concentration ◽  
Composite Cathode ◽  
Degradation Mechanisms ◽  
Lithium Sulfide ◽  
Organic Polysulfides

Lithium polysulfides (Li2Sn) react with carbonate solvents, forming organic polysulfides (R–Sn–R) and sulfides (R–S–R); the concentrated electrolyte suppresses these reactions.

Organic Polysulfides.1IV. Synthesis of Bis(triphenylmethyl) Polysulfides

1964 ◽  
Vol 29 (5) ◽  
pp. 1236-1238 ◽  
Author(s):  
Takeshige Nakabayashi ◽  
Jitsuo Tsurugi ◽  
Takuzo Yabuta
Keyword(s):  
Organic Polysulfides

The Reaction of Sulfur and Sulfur Compounds with Olefinic Substances. IV. The Thermal Decomposition of Organic Polysulfides, and Its Contribution to the Sulfur Olefin-Reaction

1949 ◽  
Vol 22 (2) ◽  
pp. 348-355
Author(s):  
George F. Bloomfield
Keyword(s):  
Thermal Decomposition ◽  
Major Part ◽  
Fission Products ◽  
Sulfur Compounds ◽  
Considerable Proportion ◽  
Elementary Sulfur ◽  
Cross Links ◽  
Organic Polysulfides ◽  
Cyclic Sulfide

Abstract At temperatures in the region of 140°, organic polysulfides undergo disproportionation resulting from thermal fission of S—S bonds and recombination of the fission products. In the presence of olefins a considerable proportion of the fission products become attached to ethylenic centers of the olefin, forming mixed mono- and polysulfides. The major part of the monosulfide product is fully saturated, hydrogen capture occurring during, or subsequent to the formation of adducts from the olefin and sulfurated fragments; unsaturation, however, appears in the polysulfide portion. The polysulfides are capable of producing monothio cross-links between the original olefinic molecules only in so far as they are able to yield up elementary sulfur to the olefin, and when the original olefin is a polyisoprene, the tendency towards the formation of a high proportion of intramolecular cyclic sulfide still further reduces the opportunity for formation of intermolecular sulfur-cross-linked products.

Organic Sulfides and Polysulfides. III. Reactions with Amines

1958 ◽  
Vol 31 (3) ◽  
pp. 615-617 ◽  
Author(s):  
Yuji Minoura
Keyword(s):  
Aromatic Amines ◽  
Glycolic Acid ◽  
Reaction Rate ◽  
Thioglycolic Acid ◽  
The Other ◽  
Relative Ease ◽  
Organic Sulfides ◽  
Other Hand ◽  
Organic Polysulfides

Abstract 1. Mono-, di-, and trimethylamine when treated with benzyl and tolyl mercaptan give disufides ; on the other hand, thioglycolic acid gives the monosulfide. 2. Aniline and diphenylamine do not react with mercaptans or organic sulfides. 3. Mono-, di- and trimethylamine react with organic polysulfides. The tri- and tetrasulfides of the tolyl and benzyl series give disulfides by desulfurization. The glycolic acud sulfides are desulfurized to monosulfide. 4. The relative desulfurization activities of mono-, di- and trimethylamine are (CH3)3N < CH3NH2 < (CH3)2NH. This order is the same as for the basicity of these amines. Aromatic amines, because of their weak basicity, do not react with organic polysulfides. 5. The relative ease of desulfurization is in the order glycolic acid > benzyl > tolyl. The more sulfur a polysulfide contains, the more readily it desulfurizes. The mercaptan to disulfide reaction rate is faster than desulfurization of polysulfides.

Rhodium-catalyzed sulfur atom exchange reaction between organic polysulfides and sulfur

2005 ◽  
Vol 46 (28) ◽  
pp. 4797-4800 ◽  
Author(s):  
Mieko Arisawa ◽  
Ken Tanaka ◽  
Masahiko Yamaguchi
Keyword(s):  
Exchange Reaction ◽  
Sulfur Atom ◽  
Organic Polysulfides

XANES analysis of tribo-chemical and thermal films generating from some organic polysulfides

2006 ◽  
Vol 51 (22) ◽  
pp. 2710-2716 ◽  
Author(s):  
Hongling Yi ◽  
Xiangqiong Zeng ◽  
Yan Cao ◽  
Tianhui Ren ◽  
M. Kasrai ◽  
...  
Keyword(s):  
Organic Polysulfides ◽  
Xanes Analysis ◽  
Thermal Films

Polarography of Certain Organic Polysulfides

1954 ◽  
Vol 26 (2) ◽  
pp. 271-280 ◽  
Author(s):  
J. H. Karchmer ◽  
M. T. Walker
Keyword(s):  
Organic Polysulfides

scholarly journals Studies on the Structure of Organic Polysulfides II

1952 ◽  
Vol 73 (4) ◽  
pp. 244-246 ◽  
Author(s):  
Yuji Minoura
Keyword(s):  
Organic Polysulfides
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