624-89-5Relevant articles and documents
Synthesis of Asymmetrical Sulfide Compounds and Asymmetrical Ether Compounds
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Paragraph 0108-0112, (2019/09/15)
The present invention discloses methods for synthesizing asymmetrical sulfide compounds and asymmetrical ether compounds from a variety of ether, sulfide, alcohol, and thiol reactants that are contacted in the presence of a suitable catalyst. Conversions of the limiting reactant to the desired asymmetrical sulfide or asymmetrical ether compound generally exceed 50%.
Semi-continuous photochemical method and device therefor
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Page/Page column 2, (2008/06/13)
In the photochemical synthetic process in semi-continuous mode according to the invention, a reactor comprising two zones is used, the radiating portion of the lamp(s) being totally immersed in a first zone which is completely filled with reaction medium and spills off via an overflow into a second zone whose volume is sufficient to contain the volume of reaction medium originating from the first zone and corresponding substantially to the volume of the reagent(s) gradually introduced.
Thermal degradation processes in polysulphide polymers investigated by flash pyrolysis gas chromatography/mass spectrometry
Sundarrajan, Subramanian,Ganesh, Kannan,Kishore, Kaushal,Surianarayanan, Mahadevan
, p. 491 - 496 (2007/10/03)
Thermal degradation of four polysulphides, poly(methylenesulphide), poly(methylenedisulphide), poly(methylenetetrasulphide), and poly(styrenesulphide)-co-poly(methylenesulphide) have been investigated by pyrolysis gas chromatography/mass spectrometry technique (Py-GC/MS). The pyrolysis products detected by Py-GC/MS indicate that the thermal decomposition of these polymers yields cyclic sulphides by an intramolecular exchange process. The linear products with thiol end groups also form along with the cyclic products through a β-CH hydrogen transfer reaction.