Macromolecular Chemistry and Physics · 2022 · 20 citations · 38 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryPolymer ChemistryPolymer MaterialsBattery Cell ChemistryBattery MaterialsBattery SystemsEnergy Storage MaterialsPolymer CharacterizationPolymer RecyclingCathode BehaviorDischarge CapacityElemental Sulfur ChemistryEnergy Storage ApplicationsLithium-ion Battery MaterialsLithium-sulfur BatteriesLithium-sulfur Battery MaterialsRecyclable Materials
Abstract In this work, a new approach to vulcanize commercial poly(vinyl chloride) (PVC) at room temperature and in a relatively short time (4 h) by using elemental sulfur and an initiator such as Na 2 S.9H 2 O is reported. The obtained crosslinked polymer contains polysulfide linkages that facilitate recycling/self‐healing through dynamic S–S linkages. It is shown that PVC‐polysulfide networks could be reprocessed at 180 °C for three times. The thermal and spectral characterizations of the polymers before and after recycling are performed via FT‐IR, DSC, and TGA analyses. The potential use of the sulfur rich PVC‐polysulfide system as cathode material for Li‐S battery application is also investigated and the first discharge capacity is found to be around 610 mAh g −1 that later faded rapidly.
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