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GRAPHICAL ABSTRACT
ABSTRACT
Copolymerization of liquid sulfur with 1,3-di-isopropenylbenzene in the absence of any organic solvent provides a stable copolymer which can be cast in molds and also forms a transparent glass. This new plastic has been found to be an advantageous component of lithium-sulfur batteries and can be processed into lenses with a high refractive index and suitable for IR thermal imaging. These polymers are also shown to be “self-healing.” That is, scratched and now opaque lenses can be repaired simply by thermal treatment. Polymerization of sulfur with 1,4-diphenylbutadiyne provides stable polymers with thiophene sulfur linkages which are improved cathode materials for lithium-sulfur batteries. Studies delineating the chemistry behind these remarkable results and characterization of these materials has been explored.
Funding
We acknowledge the NSF (CHE-1305773; DMR-1607971), the UA REN and Kuraray for support of this work. KC acknowledges the support from NRF for the National Creative Research Initiative Center for Intelligent Hybrids (2010-0018290). JP declares an actual or potential financial conflict of interest and is co-founder/equity holder in Innovative Energetics, a licensee of University of Arizona (UA) intellectual property. This relationship has been disclosed to the UA Institutional Review Committee and is managed by a Financial Conflict of Interest Management Plan.