Relay mechanism of the formation of polypropylene disulphide by anionic polymerization of propylenesulphide and the structure of the polymers formed

Aliyev, A.D.; Solomatina, I. P.; Koshevnik, A.Yi.; Zhumabayev, Zh.; Krentsel, B. A.

doi:10.1016/0032-3950(77)90168-x

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…Longer time of co(polymerization) leads to an increase of the relative intensity of signals centered at 3.50, 3.80 and 4.60 ppm and their slight shifting to lower field. According to Aliyev et al [43] and Duda [21], such trends result from the longer sequence of sulfide bonds (higher sulfur rank) in the polysulfide structure and it is consistent with the results presented herein.…”

Section: Nmr and 13 C Nmr Spectroscopy Analysissupporting

confidence: 93%

Anionic Copolymerization of Styrene Sulfide with Elemental Sulfur (S8)

et al. 2020

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The superior ability of thiiranes (episulfides) to undergo ring-opening polymerization (ROP) in the presence of anionic initiators allows the preparation of chemically stable polysulfide homopolymers. Incorporation of elemental sulfur (S8) by copolymerization below the floor temperature of S8 permits the placement of a large quantity of sulfur atoms in the polysulfide mainchain. The utility of styrene sulfide (2-phenylthiirane; StS) for copolymerization with elemental sulfur is reported here. A few polysulfides differing depending on the initial ratio of S8 to StS and copolymerization time were synthesized. Various spectroscopic methods (1H NMR, 13C NMR, Raman spectroscopy and FTIR spectroscopy) were applied to characterize the chemical structure of the copolymers. Additionally, the phase structure and thermal stability of the synthesized polysulfides were investigated using DSC and TGA, respectively. The successful anionic copolymerization of styrene sulfide and elemental sulfur has been demonstrated.

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Section: Nmr and 13 C Nmr Spectroscopy Analysissupporting

confidence: 93%