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Cardanol benzoxazines – A sustainable linker for elemental sulphur based copolymers via inverse vulcanisation
Shukla S., Ghosh A., Roy P.K., Mitra S.,
Published in Elsevier Ltd
Volume: 99
Pages: 349 - 357
An agro-waste origin cardanol benzoxazine monomer (Ca) has shown potential as a suitable sustainable linker to chemically bind petroleum industry generated waste, elemental sulphur (S) to form random copolymers poly(S-r-Ca). A series of random copolymers with varied weight percent of elemental sulphur (20–95\%) were synthesised via bulk polymerisation methodology. The Ca monomer offered several reaction sites to facilitate the formation of sulphur rich copolymers as supported by FT-IR, 1H NMR, Raman spectroscopy, XRD, DSC and TGA studies. The curing temperature of Ca was found to be lowered to reaction temperature i.e. 185 °C from 242 °C using elemental sulphur as co-reactant. Preliminary studies of random poly(S-r-Ca) copolymers with a very high sulphur loadings (>80\% w/w) demonstrated inverse vulcanisation and suggest their utility as an efficient substitute to elemental sulphur as a cathode material in Li-S battery. © 2016 Elsevier Ltd
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Published in Elsevier Ltd
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