ETHYNETHIOL-BASED POLYENEPOLYSULFIDES FROM ACETYLENE AND ELEMENTAL SULFUR: SYNTHESIS AND PROPERTIES

Ethynethiol-based polysulfide polymers [C ssize 2} H 2 S x ] (x = 1-6) have been synthesized by the reaction of sodium acetylides and elemental sulfur in liquid ammonia with the following hydrolysis of sodium ethynethiolates and spontaneous polymerization of ethynethiols thus formed. The polymers ar...

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Bibliographic Details
Published in:Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 2004-01, Vol.179 (1), p.35-47
Main Authors: Trofimov, Boris A., Mal'kina, Anastasiya G., Dorofeev, Ivan A., Myachina, Galina F., Rodionova, Irina V., Vakul'skaya, Tamara I., Sinegovskaya, Lidiya M., Skotheim, Terje A.
Format: Article
Language:English
Subjects:
Acetylene
elemental sulfur
ethynehydropolysulfanes
ethynethiol
lithium battery
polymers
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Summary:Ethynethiol-based polysulfide polymers [C ssize 2} H 2 S x ] (x = 1-6) have been synthesized by the reaction of sodium acetylides and elemental sulfur in liquid ammonia with the following hydrolysis of sodium ethynethiolates and spontaneous polymerization of ethynethiols thus formed. The polymers are brown powders (up to 87% sulfur content), possessing electroconducting (10 −13 -10 −14 S · cm −1 ), paramagnetic (10 18 spin · g −1 ) and redox properties. Application of the polymers as active cathode materials provides for a stable cycling of model lithium batteries. * Now Sion Power Corporation.
ISSN:1042-6507
1563-5325
DOI:10.1080/10426500490257014